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Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 5305 |
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diff --git a/ChangeLog b/ChangeLog new file mode 100644 index 0000000..894ca8b --- /dev/null +++ b/ChangeLog @@ -0,0 +1,5305 @@ +2011-03-01 Eric Blake <eblake@redhat.com> + + Release Version 1.4.16. + * gnulib: Update to latest. + * NEWS: Mention the release. + * src/builtin.c (m4_defn): Silence spurious -Wstrict-overflow + warnings from gcc 4.5.1 at -O2. + +2011-02-28 Eric Blake <eblake@redhat.com> + + index: fix typo in previous commit + * doc/m4.texinfo (Index macro): Actually expose the bug. + +2011-02-26 Eric Blake <eblake@redhat.com> + + index: fix another regression from faulty strstr + * gnulib: Update to latest, for strstr fix. + * doc/m4.texinfo (Index macro): Test for the bug. + * NEWS: Document the fix. + * THANKS: Update. + Reported by Mike Stump, with additional analysis from Ralf + Wildenhues and Jim Meyering. + +2011-02-07 Eric Blake <eblake@redhat.com> + + maint: speed up configure, using latest gnulib + * gnulib: Update to latest. + * m4/gnulib-cache.m4: Import fclose and rename modules. + * configure.ac (gl_ASSERT_NO_GNULIB_POSIXCHECK): Speed up normal + configure runs (and document how to rerun GNULIB_POSIXCHECK). + * HACKING: Document GNULIB_POSIXCHECK. + + maint: update http git cloning instructions + * HACKING: Git http doesn't like the redirect at git.sv.gnu.org. + * THANKS: Update. + Reported by Mike Dupont. + +2011-02-01 Eric Blake <eblake@redhat.com> + + maint: update to latest gnulib + * gnulib: Update to latest. + * m4/gnulib-cache.m4: Regenerate. + * src/builtin.c (m4_ifelse): Use STREQ. + +2011-01-25 Eric Blake <eblake@redhat.com> + + maint: reflect recent copyright assignments + * AUTHORS: Update. + +2011-01-03 Eric Blake <eblake@redhat.com> + + maint: update copyright year + * gnulib: Update to latest. + * m4/gnulib-cache.m4: Regenerate. + * all other files: Run 'make update-copyright'. + + maint: document use of copyright ranges + * README: Copy coreutils wording for allowing copyright year + ranges. Also mention libsigsegv 2.9. + * cfg.mk (UPDATE_COPYRIGHT_USE_INTERVALS): Now that GNU Coding + Standards permit it, prefer shorthand copyright. + * HACKING: Update libsigsegv preference. + * NEWS: 1.4.16 will be in 2011. + * doc/m4.texinfo (History): Likewise. + +2010-12-31 Eric Blake <eblake@redhat.com> + + main: avoid leaking string on Haiku + * src/m4.c (main): Avoid leak when SIGBUS == SIGSEGV. + * THANKS: Update. + Reported by Scott McCreary. + +2010-12-24 Eric Blake <eblake@redhat.com> + + build: pull in various gnulib fixes + * gnulib: Update to latest. + * m4/gnulib-cache.m4: Reflect spawn-pipe module name change. + * src/builtin.c (includes): Likewise. + (define_user_macro): Alter comment to appease syntax-check. + * src/input.c (pop_wrapup): Likewise. + * src/output.c (undivert_all): Likewise. + * cfg.mk (local-checks-to-skip): Skip new rule. + + maint: reflect recent copyright assignment + * AUTHORS: Add Raphael Poss. + +2010-10-21 Eric Blake <eblake@redhat.com> + + build: work around glibc and libsigsegv bugs + * gnulib: Update to latest. + * m4/gnulib-cache.m4: Regenerate. + * docs/m4.texinfo (Index macro): Expose strstr bug. + * NEWS: Mention fixes. + + docs: mention more history + * doc/m4.texinfo (History): Add upcoming 1.4.16 release. + +2010-08-31 Eric Blake <eblake@redhat.com> + + Release Version 1.4.15. + * gnulib: Update to latest. + * NEWS: Mention the release. + +2010-08-30 Eric Blake <eblake@redhat.com> + + Clean up compiler warnings. + * src/builtin.c (m4_patsubst): Drop dead store. + * src/eval.c (unary_term): Likewise. + * src/input.c (match_input): Likewise. Also drop useless casts to + void. + * src/symtab.c (symtab_debug): Drop useless casts. + + Test previous commit. + * doc/m4.texinfo (Format): Add a test. + * NEWS: Document the fix. + * THANKS: Update. + +2010-08-30 Carlo Teubner <carlo.teubner@gmail.com> (tiny change) + + Avoid a crash with bad format string. + * src/format.c (expand_format): Fix off-by-one error. + +2010-08-30 Eric Blake <eblake@redhat.com> + + Document recent bug fixes. + * NEWS: Add some entries. + * gnulib: Update to latest, for more AIX fixes. + +2010-07-30 Eric Blake <eblake@redhat.com> + + Update to newer gnulib. + * gnulib: Update to latest, for strtod fix. + * src/Makefile.am (m4_LDADD): Update link libraries accordingly. + * cfg.mk (local-checks-to-skip): Skip broken check. + * doc/m4.texinfo: Drop all use of @acronym{}. + * THANKS: Update. + Reported by Rainer Tammer. + +2010-06-04 Eric Blake <eblake@redhat.com> + + Reflect recent copyright assignment. + * AUTHORS: Add David Warme. + + Update to newer gnulib. + * gnulib: Update to latest, and include C++ tests. + * configure.ac (gl_CXX_CHOICE_DEFAULT_NO): Make default for C++ + tests be disabled... + * Makefile.am (DISTCHECK_CONFIGURE_FLAGS): ...but run them when + building package. + * m4/gnulib-cache.m4: Regenerate. + * build-aux/.cvsignore: Likewise. + * build-aux/.gitignore: Likewise. + + Fix build on newer glibc. + * src/m4.h (includes): Add <sys/stat.h>. + * THANKS: Update. + Reported by Todd Rinaldo. + +2010-03-02 Giuseppe Scrivano <gscrivano@gnu.org> (tiny change) + + Support bootstrap --gnulib-srcdir=DIR. + * bootstrap: Add --gnulib-srcdir option, which overrides + GNULIB_SRCDIR, for consistency with gnulib bootstrap. + +2010-02-24 Eric Blake <eblake@redhat.com> + + Release Version 1.4.14. + * gnulib: Update to latest. + * README: Increase libsigsegv recommendation. + * HACKING: Likewise. Tweak release instructions. + * NEWS: Mention the release. + + Improve parsing example. + * doc/m4.texinfo (Input processing): Double-quote argument to + translit, for robustness. + * THANKS: Update. + Reported by Chris Penev. + +2010-01-29 Eric Blake <ebb9@byu.net> + + Document upcoming release. + * gnulib: Update to latest. + * doc/m4.texinfo (History): Mention 1.4.14. + +2010-01-06 Eric Blake <ebb9@byu.net> + + Use correct license on auxiliary documentation. + * gnulib: Update to latest. + * AUTHORS: Use GFDL 1.3, not 1.2. + * BACKLOG: Likewise. + * README: Likewise. + * THANKS: Likewise. + * TODO: Likewise. + * NEWS: Place under GFDL. + * cfg.mk (old_NEWS_hash): Update. + +2010-01-05 Eric Blake <ebb9@byu.net> + + Remove more TAB characters. + * THANKS: Use space for alignment. + * bootstrap: Likewise. + * checks/stackovf.test: Likewise. + * configure.ac: Likewise. + * src/builtin.c: Likewise. Also update some stale comments. + * src/debug.c: Likewise. + * src/eval.c: Likewise. + * src/format.c: Likewise. + * src/freeze.c: Likewise. + * src/input.c: Likewise. + * src/m4.c: Likewise. + * src/m4.h: Likewise. + * src/macro.c: Likewise. + * src/output.c: Likewise. + * src/path.c: Likewise. + * src/symtab.c: Likewise. + + Clarify minimum bootstrap requirements. + * bootstrap: Avoid out-of-date duplicated data. + + Security fix by requiring newer automake features. + * configure.ac (AM_INIT_AUTOMAKE): Add dist-xz, color-tests, + parallel-tests, and silent-rules. + (AC_PREREQ): Bump autoconf requirement to 2.62, per automake. + * HACKING: Update minimum requirements. + * NEWS: Document the fix. + + Drop hard-coding of GPG id. + * gnulib: Update to latest. + * m4/gnulib-cache.m4: Regenerate. + * cfg.mk (gpg_key_ID): Delete, now that maint.mk provides a + sensible default. + (update-copyright-env): Don't let environment interfere with wrap + column. + +2010-01-01 Eric Blake <ebb9@byu.net> + + Update copyright year. + All files impacted, via 'make update-copyright'. Additionally: + * .gitignore: Ignore backup files. + +2009-12-29 Eric Blake <ebb9@byu.net> + + Document new indentation policy. + * HACKING: Document indentation policy. + * .x-sc_prohibit_tab_based_indentation: New file. + * cfg.mk (sc_prohibit_tab_based_indentation): New rule. + * Makefile.am (syntax_check_exceptions): New macro. + (EXTRA_DIST): Distribute exception files, and .prev-version. + + Switch to indentation by space, not tab. + * .gitmodules: Convert leading tabs to spaces. + * TODO: Likewise. + * bootstrap: Likewise. + * c-boxes.el: Likewise. + * checks/check-them: Likewise. + * checks/get-them: Likewise. + * checks/stackovf.test: Likewise. + * configure.ac: Likewise. + * src/builtin.c: Likewise. + * src/debug.c: Likewise. + * src/eval.c: Likewise. + * src/format.c: Likewise. + * src/freeze.c: Likewise. + * src/input.c: Likewise. + * src/m4.c: Likewise. + * src/m4.h: Likewise. + * src/macro.c: Likewise. + * src/output.c: Likewise. + * src/path.c: Likewise. + * src/symtab.c: Likewise. + + Update to latest gnulib. + * gnulib: Update. + * m4/gnulib-cache.m4: Import xoset. + * src/output.c (includes): Ensure that gnulib oset usage will + call xalloc_die on memory failure. + * build-aux/.cvsignore: Regenerate. + * build-aux/.gitignore: Likewise. + +2009-11-28 Eric Blake <ebb9@byu.net> + + Work around BSD getopt bug. + * gnulib: Update. + * doc/m4.texinfo (Command line files): Add test. + + Use fastmap for better regex performance. + * src/input.c (word_start): Delete. + (pop_wrapup): Free memory on exit. + (set_word_regexp): Compile a fastmap instead. + (peek_token, next_token): Use the fastmap. + +2009-11-26 Eric Blake <ebb9@byu.net> + + Ignore write failures before stack overflow exit. + * m4/gnulib-cache.m4: Import ignore-value module. + * src/m4.c (fault_handler): Use it to avoid compiler warning. + +2009-11-25 Eric Blake <ebb9@byu.net> + + Allow use of compiler warnings. + * m4/gnulib-cache.m4: Import manywarnings module. + * configure.ac (WERROR_CFLAGS, WARN_CFLAGS): New variables. + * src/Makefile.am (AM_CFLAGS): Use them. + * Makefile.am (DISTCHECK_CONFIGURE_FLAGS): Turn on warnings during + distcheck. + * src/m4.h (M4_GNUC_NORETURN): New macro. + (trace_post): Delete unused parameter. + * src/m4.c (usage): Mark as noreturn. + (main): Remove unused parameter. + * src/debug.c (trace_post): Likewise. + (trace_pre): Cover all enum values. + * src/symtab.c (lookup_symbol): Likewise. + * src/builtin.c (define_macro, m4_dumpdef): Likewise. + (m4_define, m4_undefine, m4_pushdef, m4_popdef, m4_sysval) + (m4_divert, m4_undivert, m4_dnl, m4_changequote, m4_changecom) + (m4_changeword, m4_syscmd, m4_include, m4_sinclude, m4_m4exit) + (m4_debugmode, m4_debugfile, m4_placeholder): Mark unused + parameters. + (mkstemp_helper): Use parameter. + (substitute): Avoid signed vs. unsigned comparison. + * src/format.c (arg_int, arg_long, arg_double): Likewise. + * src/input.c (next_token): Likewise. + * src/output.c (freeze_diversions): Likewise. + (m4_tmpname): Allow C++ compilation. + * src/freeze.c (produce_frozen_state, GET_NUMBER): Use correct + type. + * src/macro.c (call_macro): Cover all enum values. + (expand_macro): Update caller. + * src/path.c (m4_fopen): Remove unused parameter. + (m4_path_search): Update caller. + + Silence syntax-check warnings. + * src/m4.h (STREQ): New macro. + * src/builtin.c (find_builtin_by_name): Use it. + * src/input.c (set_word_regexp): Likewise. + * src/m4.c (process_file): Likewise. + (main): Consistently spell warning, and mark output strings. + Avoid unsafe parsing functions. + (process_file): Mark output strings. + * src/output.c (make_diversion): Likewise. + * src/format.c (arg_int, arg_long, arg_double): New helpers. + (ARG_INT, ARG_LONG, ARG_DOUBLE): Use them to detect parse errors. + * BACKLOG: Avoid whitespace problems. + * TODO: Likewise. + * HACKING: Likewise. + * examples/esyscmd.m4: Likewise. + * examples/file.m4: Likewise. + * examples/fstab.m4: Likewise. + * examples/patsubst.m4: Likewise. + + Use gnulib maintainer-makefile module. + * m4/gnulib-cache.m4: Import maintainer-makefile module. + * cfg.mk (local-checks-to-skip): Drop changelog-check; add + sc_cast_of_x_alloc_return_value. + (gnulib_dir, gnu_rel_host, url_dir_list): Delete; provided by + maint.mk. + (config_h_header, old_NEWS_hash): New macros. + * .prev-version: New file. + * maint.mk: Remove from version control; use gnulib instead. + * .gitignore: Update. + * HACKING: Update. + + Update from gnulib. + * gnulib: Update. + * m4/gnulib-cache.m4: Use --makefile-name. + * lib/Makefile.am: Wrap the gnulib-generated file. + * tests/Makefile.am: Likewise. + * .gitignore: Track our wrappers. + * doc/m4.texinfo (Improved capitalize): Fix typo. + +2009-10-05 Eric Blake <ebb9@byu.net> + + Update from gnulib. + * gnulib: Update. + * m4/gnulib-cache.m4: Import gnu-web-doc-update module. + * build-aux/.gitignore: Ignore new file. + * build-aux/.cvsignore: Likewise. + +2009-08-20 Eric Blake <ebb9@byu.net> + + Update from gnulib. + * gnulib: Update. + * AUTHORS: Mention recent copyright assignment. + +2009-08-17 Eric Blake <ebb9@byu.net> + + Enhance test with closed descriptors. + * doc/m4.texinfo (Command line files): Enhance test from + 2009-07-20 to actually test the bug being fixed. + + Update copyright year. + * AUTHORS: Run UPDATE_COPYRIGHT_FORCE=1 make update-copyright. + * BACKLOG: Likewise. + * Makefile.am: Likewise. + * TODO: Likewise. + * acinclude.m4: Likewise. + * c-boxes.el: Likewise. + * cfg.mk: Likewise. + * checks/Makefile.in: Likewise. + * checks/check-them: Likewise. + * checks/stackovf.test: Likewise. + * doc/Makefile.am: Likewise. + * examples/Makefile.am: Likewise. + * src/Makefile.am: Likewise. + * src/debug.c: Likewise. + * src/eval.c: Likewise. + * src/freeze.c: Likewise. + * src/m4.h: Likewise. + * src/macro.c: Likewise. + * src/path.c: Likewise. + * src/symtab.c: Likewise. + + Prepare to bulk update copyright year. + * gnulib: Update. + * m4/gnulib-cache.m4: Import update-copyright and vc-list-files + modules. + * maint.mk: Fix copyright. + (build_aux, VC_LIST, VC_LIST_EXCEPT, update-copyright): New macros + and rules borrowed from gnulib. + * cfg.mk (update-copyright-env): Enforce longhand behavior. + * .cvsignore: Reflect these changes. + * .gitignore: Likewise. + * .x-update-copyright: New file. + +2009-08-14 Eric Blake <ebb9@byu.net> + + Explicitly request GNU getopt extensions. + * gnulib: Update. + * m4/gnulib-cache.m4: Use getopt-gnu, not obsolete getopt module. + +2009-07-22 Eric Blake <ebb9@byu.net> + + Fix testsuite on Solaris. + * doc/m4.texinfo (Command line files): Tolerate different spelling + of EBADF. + * src/builtin.c (m4_esyscmd): Clear errno before reaping. + +2009-07-21 Eric Blake <ebb9@byu.net> + + Fix testsuite on mingw. + * gnulib: Update. + +2009-07-20 Eric Blake <ebb9@byu.net> + + Pick up gnulib fixes for sub-process execution. + * gnulib: Update. + * doc/m4.texinfo (Command line files): Add test; regression + introduced 2009-03-05. + * NEWS: Document the change. + + Avoid cygwin 1.7 crash with closed stdout. + * gnulib: Update. + * doc/m4.texinfo (Command line files): Add test; regression + introduced 2008-07-17. + * NEWS: Document the change. + + A status of 127 does not always imply esyscmd failure. + * src/builtin.c (m4_esyscmd): Silence gnulib message; regression + introduced 2009-03-05. + * doc/m4.texinfo (Sysval): Test this. + * NEWS: Document the change. + +2009-06-25 Eric Blake <ebb9@byu.net> + + Fix description of limits on diversions. + * doc/m4.texinfo (Diversions): Fix grammar. Be less pessimistic + about limitations. + * THANKS: Update. + Reported by Elias Benali. + +2009-06-17 Eric Blake <ebb9@byu.net> + + Update to latest gnulib. + * gnulib: Import fixes for Interix compilation. + * THANKS: Update. + Reported by Jay Krell. + +2009-05-22 Eric Blake <ebb9@byu.net> + + Update to latest gnulib. + * gnulib: Import fixes for AIX compilation. + * THANKS: Update. + Reported by Jens Rehsack. + +2009-04-13 Eric Blake <ebb9@byu.net> + + Fix GFDL usage. + * doc/m4.texinfo (copying): Complete transition to GFDL 1.3, + started 2008-12-12. + Reported by Santiago Vila. + +2009-04-01 Eric Blake <ebb9@byu.net> + + Release Version 1.4.13. + * NEWS: Mention the release. + +2009-03-31 Eric Blake <ebb9@byu.net> + + Tweak submodule instructions. + * HACKING: Improve directions. + * gnulib: Update to latest version. + +2009-03-23 Eric Blake <ebb9@byu.net> + + Don't force file overwrites during bootstrap. + * bootstrap: Ensure that rerunning bootstrap doesn't alter tree. + + Drop dist-lzma, now that xz replaces lzma. + * configure.ac (AM_INIT_AUTOMAKE): Drop dist-lzma. Until a stable + automake release includes dist-xz, the release process will just + manually create a .xz tarball. + * gnulib: Update to latest gnulib. + +2009-03-19 Eric Blake <ebb9@byu.net> + + Exploit git submodule by adding appropriate symlinks. + * bootstrap: No longer copy files from gnulib. + * COPYING: Change to symlink pointing into gnulib. + * INSTALL: Likewise. + * build-aux/compile: Likewise. + * build-aux/config.guess: Likewise. + * build-aux/config.sub: Likewise. + * build-aux/depcomp: Likewise. + * build-aux/install-sh: Likewise. + * build-aux/mdate-sh: Likewise. + * build-aux/missing: Likewise. + * build-aux/texinfo.tex: Likewise. + * .cvsignore: Reflect these changes. + * .gitignore: Likewise. + * build-aux/.cvsignore: New file. + * build-aux/.gitignore: Likewise. + +2009-03-18 Eric Blake <ebb9@byu.net> + + Make gnulib a git submodule. + * .gitmodules: New file. + * gnulib: Record which version of gnulib has been tested. + * bootstrap: Aid in submodule usage. + * cfg.mk (gnulib_dir): Alter default location of gnulib. + * HACKING: Mention how to use submodule. + + Use latest compile script, even with stable automake. + * bootstrap: Also sync build-aux/compile. + +2009-03-12 Eric Blake <ebb9@byu.net> + + Fix awk script portability. + * checks/get-them: In gsub, properly escape {. Close all files + before exiting. + Reported by Gary V. Vaughan. + +2009-03-05 Eric Blake <ebb9@byu.net> + + Allow configuration choice in syscmd shell. + * configure.ac (SYSCMD_SHELL): New test. + * src/builtin.c (m4_syscmd, m4_esyscmd): Use it to avoid + hard-coding the shell location. + * doc/m4.texinfo (Syscmd, Esyscmd): Document this. + * README: Document new configure option. + * NEWS: Likewise. + + Remove cruft now that gnulib modules do the work. + * configure.ac (M4_cv_func_system_consistent): Delete. + * src/builtin.c (M4SYSVAL_EXITBITS, M4SYSVAL_TERMSIGBITS): + Delete. + + Use gnulib pipe module instead of popen(3). + * m4/gnulib-cache.m4: Import pipe and wait-process modules. + * src/builtin.c (m4_esyscmd): Rewrite with pipe module. + Resolves a failure on AIX, reported by Gary V. Vaughan. + + Use gnulib execute module instead of system(3). + * m4/gnulib-cache.m4: Import execute module. + * src/builtin.c (m4_sysval): Move computation... + (m4_esyscmd): ...into caller. + (m4_syscmd): Rewrite with execute module. + Resolves a failure on AIX, reported by Gary V. Vaughan. + +2009-03-03 Eric Blake <ebb9@byu.net> + + Try to tolerate spaces in directory names in testsuite. + * doc/m4.texinfo (Diversions, Using frozen files): Provide shell + quoting, in case __program__ contains spaces. + + Improve web-manual maintainer rule. + * maint.mk (web-manual): Work with VPATH builds. Factor + package-specific detail... + * cfg.mk (manual_title): ...to new variable. + +2009-02-26 Eric Blake <ebb9@byu.net> + + Make bootstrap easier on Solaris. + * bootstrap: Add GNULIB_SRCDIR. Useful when a wrapper script + gnulib-tool exists earlier on the path to work around /bin/sh + failure in parsing $GNULIB_SRCDIR/gnulib-tool. + +2009-02-19 Eric Blake <ebb9@byu.net> + + Fix regression in translit. + * src/builtin.c (m4_translit): Use correct comparison. + * doc/m4.texinfo (Translit): Enhance test. + + Speed up input engine, by searching for quotes by buffer. + * src/input.c (struct input_block): Add end pointer to string. + (push_string_finish, push_wrapup): Populate it. + (next_token): For quotes, attempt a buffer search. + * NEWS: Document this. + +2009-02-18 Eric Blake <ebb9@byu.net> + + Speed up translit when from argument is short. + * m4/gnulib-cache.m4: Import memchr2 module. + * src/builtin.c (m4_translit): Use memchr2 when possible. + * doc/m4.texinfo (Translit): Add tests. + * NEWS: Document this. + + Update copyright year. + * THANKS: Mention 2009 in copyright year. + + Prefer buffer over byte operations. + * src/format.c (expand_format): Use strchr for speed. + * src/builtin.c (substitute, expand_user_macro): Likewise. + + Speed up esyscmd with buffer reads. + * src/builtin.c (m4_esyscmd): Read blocks directly into obstack, + rather than repeatedly reading bytes. Detect read errors. + + Avoid risk of stack overflow. + * src/output.c (insert_file): Avoid stack allocation of large + buffer. + (freeze_diversions): Avoid spurious semicolon. + +2009-02-16 Eric Blake <ebb9@byu.net> + + Avoid test failure due to different errno. + * doc/m4.texinfo (Using frozen files): Ignore stdout, since + hardened systems can prevent attempts to read /. + * THANKS: Update. + Reported by Ronny Peine, in Gentoo bug 259184. + + Avoid tests that make no sense, because m4 is single-threaded. + * m4/gnulib-cache.m4: Avoid lock-tests and tls-tests. + +2009-02-12 Eric Blake <ebb9@byu.net> + + Avoid quadratic code when walking definition stack. + * examples/stack_sep.m4: Use linear, not quadratic + implementation. + * doc/m4.texinfo (Improved copy): Fix documentation and add test, + based on recent autoconf bug fix. + +2009-01-24 Eric Blake <ebb9@byu.net> + + Add URLs to --help output. + * src/m4.c (usage): Use enhanced version-etc features. + +2009-01-02 Eric Blake <ebb9@byu.net> + + Use nicer email address in web manual. + * maint.mk (web-manual): Use new option in gendocs.sh. + + Nuke xdelta diffs at release time; no one reported using them. + * maint.mk (got-xdelta, delta-xdelta): Delete. + * HACKING: Likewise. + +2009-01-01 Eric Blake <ebb9@byu.net> + + Update copyright year. + * NEWS: M4 1.4.13 will occur in 2009. + * doc/m4.texinfo (History): Likewise. + +2008-12-24 Eric Blake <ebb9@byu.net> + + Prepare for eventual release. + * doc/m4.texinfo (History): Mention 1.4.13. + +2008-12-22 Eric Blake <ebb9@byu.net> + + Make --debugfile argument optional. + * src/builtin.c (m4_debugfile): Make error message consistent. + * src/m4.c (long_options): Make the argument optional, to allow + setting debug file back to stderr. + (main): Make --debugfile order-dependent. + (usage): Document this. + * doc/m4.texinfo (Debugging options): Likewise. + * NEWS: Likewise. + + Use @var correctly. + * doc/m4.texinfo (Operation modes, Preprocessor features) + (Limits control, Frozen state, Debugging options): Use lower case + names in @var. + (Improved copy): Use @code, not @var, as appropriate. + +2008-12-18 Eric Blake <ebb9@byu.net> + + Document optimized forloop. + * doc/m4.texinfo (Improved forloop): Mention alternate style that + avoids define overhead. + * examples/forloop3.m4: New file. + * examples/Makefile.am (EXTRA_DIST): Distribute it. + + Deal with M4 1.4.x limitation on builtin tokens. + * doc/m4.texinfo (Composition): Mention limitation on curry. + (Improved copy): New node. + * examples/stack_sep.m4: New file. + * examples/Makefile.am (EXTRA_DIST): Distribute it. + + Document copy composite using stack_foreach and curry. + * doc/m4.texinfo (Stacks): New node, to document pushdef stack + manipulation. + (Ifelse): Move define_blind... + (Composition): ...to this new node. Document currying, then use + it to implement copy and rename. + * examples/curry.m4: New file. + * examples/stack.m4: Likewise. + * examples/Makefile.am (EXTRA_DIST): Distribute them. + +2008-12-17 Eric Blake <ebb9@byu.net> + + Don't override signal handlers installed by c-stack. + * src/m4.c (main): Reorder installation of signal handlers, so we + don't trash a SIGBUS handler installed by c-stack. Also provide a + SIGSEGV fallback, for platforms where c-stack combined with + libsigsegv uses something lower level than SIGSEGV. + +2008-12-12 Eric Blake <ebb9@byu.net> + + Double size of temp file cache. + * src/output.c (tmp_file, tmp_file_owner): Split... + (tmp_file1, tmp_file2, tmp_file1_owner, tmp_file2_owner): ...into + two variables. + (tmp_file2_recent): New variable. + (m4_tmpopen, m4_tmpclose, m4_tmpremove, m4_tmprename) + (output_exit): Adjust callers. + + Use fewer seeks on cached files. + * src/output.c (m4_tmpfile): Use write, not append mode. + (m4_tmpopen): Add parameter to decide when to skip seeks. + (m4_tmprename, make_diversion, insert_diversion_helper) + (freeze_diversions): Adjust callers. + + Cache most recently spilled diversion. + * src/output.c (tmp_file, tmp_file_owner): New variables, for + 1-deep cache of spilled diversions. + (m4_tmpfile): Open in append mode, since we might revisit + diversion without closing it now. + (m4_tmpopen): Check cache first. + (m4_tmpclose): Update cache, rather than closing. Add parameter. + (m4_tmpremove): Close cache before removing. + (m4_tmprename): Deal with open files when renaming. + (output_exit): Close cache before exiting. + (make_room_for, make_diversion, insert_diversion_helper): Adjust + callers. + * configure.ac (RENAME_OPEN_FILE_WORKS): New configure test. + + Correctly track size of in-memory diversions. + * src/output.c (insert_diversion_helper): Correctly track total + in-memory diversion size after undivert. + + Avoid quadratic behavior for some cases of divert/undivert. + * src/output.c (struct m4_diversion): Improve comments. + (m4_tmpname, make_diversion): Strengthen preconditions. + (m4_tmprename): New function. + (output_init, output_exit): Move after internal functions. + (make_room_for): Don't bother copying uninitialized bytes. + (insert_diversion_helper): Transfer metadata, rather than copying + contents, when undiverting into a previously unused diversion. + * src/m4.h (includes): Add assert.h. + * doc/m4.texinfo (Diversions): Add test. + (Undivert): Enhance test. + * NEWS: Document the speedup. + +2008-12-12 Eric Blake <ebb9@byu.net> + + Upgrade to FDL 1.3, keep COPYING in repository. + * Makefile.am (MAINTAINERCLEANFILES): Don't remove COPYING. + * .cvsignore: Don't ignore it. + * .gitignore: Likewise. + * COPYING: Store in repository, per automake 1.10.2 + recommendation. + * m4/gnulib-cache.m4: Replace fdl module with fdl-1.3. + * doc/m4.texinfo (GNU Free Documentation License): Upgrade + license. + * doc/Makefile.am (m4_TEXINFOS): Likewise. + * NEWS: Mention the documentation license change. + +2008-10-10 Eric Blake <ebb9@byu.net> + + Release Version 1.4.12. + * NEWS: Mention the release. + +2008-10-06 Eric Blake <ebb9@byu.net> + + Work around Solaris' sed inability to process NUL. + * checks/check-them (SED): Allow user to override. + +2008-09-25 Eric Blake <ebb9@byu.net> + + Tweak error message on command line failure. + * src/m4.c (process_file): Match wording of include builtin. + * src/freeze.c (produce_frozen_state): Likewise. + * m4/gnulib-cache.m4: Regenerate. + * doc/m4.texinfo (Command line files, Using frozen files): Update + tests accordingly. + +2008-09-24 Eric Blake <ebb9@byu.net> + + Unify error handling for reading directories. + * src/path.c (m4_path_search): Factor open attempts... + (m4_fopen): ...into new function, to reject directories. + * doc/m4.texinfo (Include): Document that directories cannot be + input files. + + Avoid bugs on platforms that mishandle trailing /. + * m4/gnulib-cache.m4: Import fopen module. + * doc/m4.texinfo (Command line files, Include): Add tests. + (Using frozen files): This test now works on mingw. + * checks/check-them (examples): Expand xerr to allow ignoring + error output because of differences in platform errno values. + +2008-09-22 Eric Blake <ebb9@byu.net> + + Support alternate path separator. + * m4/gnulib-cache.m4: Import dirname and filenamecat modules. + * src/m4.h (includes): Add headers. + * src/path.c (m4_path_search): Avoid literal use of '/' as path + separator and when detecting absolute paths. + +2008-09-16 Eric Blake <ebb9@byu.net> + + Fix bootstrap for Solaris /bin/sh. + * bootstrap: Avoid shell quoting pitfall. + +2008-09-01 Eric Blake <ebb9@byu.net> + + Fix building with -DDEBUG=1. + * src/input.c (lex_debug) [DEBUG_INPUT]: Fix compilation failure. + * src/symtab.c (symtab_debug) [DEBUG_SYM]: Likewise. + * src/m4.c (includes) [DEBUG_STKOVF]: Likewise. + Reported by Tom G. Christensen. + +2008-09-01 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> + + Typos in source code comments. + * src/builtin.c: Fix typos in comments. + * src/input.c: Likewise. + +2008-08-29 Eric Blake <ebb9@byu.net> + + Fix manual date information. + * doc/m4.texinfo: UPDATED refers to the day the manual was built, + not the release date of M4. + Based on a bison patch by Akim Demaille. + +2008-08-27 Eric Blake <ebb9@byu.net> + + Fix typo. + * doc/m4.texinfo (Invoking m4): 'm4 -d+f' is not supported in this + branch. + +2008-08-25 Eric Blake <ebb9@byu.net> + + Update recommendation now that libsigsegv 2.6 is released. + * NEWS: Recommend libsigsegv 2.6+. + * README: Likewise. + +2008-08-21 Eric Blake <ebb9@byu.net> + + Fix crash with traced defn(undef), regression from 2007-08-09. + * src/builtin.c (m4_defn): Handle traced but undefined macros. + * doc/m4.texinfo (Trace): Test it. + * NEWS: Document it. + +2008-08-18 Eric Blake <ebb9@byu.net> + + Fix crash with 'm4 -N9', regression from 2006-09-14. + * src/m4.c (main): Add missing break. + * NEWS: Document it. + +2008-08-15 Eric Blake <ebb9@byu.net> + + Documentation updates. + * doc/m4.texinfo (History): Mention 1.4.12. + (Builtin): Enhance regression tests. + (Debug Levels): Mention effect of -l. Enhance regression tests. + (Incompatibilities): Fix typo, and mention trace output. + (Improved capitalize): Simplify example. + + Avoid compiler warning. + * src/builtin.c (m4_ifelse): Avoid unused variable. + * THANKS: Update. + Reported by Tom G. Christensen. + + Improve 'git diff' of manual source. + * .gitattributes (*.texi*): Add diff attribute. + * bootstrap: Tell git how to use it. + Inspired by Jim Meyering's similar patch for coreutils. + +2008-08-11 Eric Blake <ebb9@byu.net> + + Avoid triggering OS/2 bug in testsuite. + * doc/m4.texinfo (Mkstemp): Don't assume test(1) status is 1. + Reported by Elbert Pol. + +2008-08-03 Eric Blake <ebb9@byu.net> + + Increase ulimit stack value to be larger than SIGSTKSZ. + * checks/stackovf.test (tmpfile): Use 300K rather than 50K, since + at least OpenBSD's sh died early from an undersized stack limit. + +2008-07-17 Eric Blake <ebb9@byu.net> + + Remove redundant examples/stackovf.sh. + * examples/stackovf.sh: Delete, now that checks has better + version. + * examples/Makefile.am (EXTRA_DIST): Don't distribute it. + +2008-07-17 Eric Blake <ebb9@byu.net> + + Adjust to c-stack changes in gnulib. + * src/Makefile.am (m4_LDADD): Use libsigsegv when available and + necessary, via LIBCSTACK. + * src/m4.c (main) [DEBUG_STACKOVF]: Make it easier to test fault + handlers. + * checks/stackovf.test: New file. + * checks/Makefile.in (CHECKS): Add stackovf.test, and factor... + (DOC_CHECKS): ...generated documentation tests into new macro. + (DISTFILES): Distribute stackovf.test. + * checks/check-them: Special-case stackovf.test. + * NEWS: Enhance the NEWS item for -L improvements. + * README: Mention the optional dependency. + * HACKING: Mention maintenance burden added by libsigsegv. + +2008-06-21 Eric Blake <ebb9@byu.net> + + Use new sigaction module. + * m4/gnulib-cache.m4: Import sigaction module. + * src/m4.c (main): Drop signal() calls. + +2008-06-18 Eric Blake <ebb9@byu.net> + + Also trap SIGILL, SIGFPE, SIGBUS. + * m4/gnulib-cache.m4: Import strsignal module. + * src/m4.c (main): Register more handlers, and prefer sigaction + when available. + (SIGBUS, NSIG): Provide fallback when lacking. + (signal_message): New variable, to keep async-safety. + (fault_handler): Display faulting signal description. + * configure.ac (gl_DISABLE_THREADS): Request gnulib modules to + optimize for single-threaded operation. + +2008-06-06 Eric Blake <ebb9@byu.net> + + Inform users what to do in case of programmer error. + * src/m4.h (EXIT_INTERNAL_ERROR): New macro. + * configure.ac (AC_TYPE_SIGNAL): Delete, now that we assume C89. + * src/m4.c (fault_handler): New method. + (program_error_message): New variable, for async-safety. + (main): Print bug reporting address rather than dump core on any + failed assertions or detected non-stack-overflow faults. + +2008-06-06 Eric Blake <ebb9@byu.net> + + Replace stackovf with gnulib c-stack. + * m4/gnulib.cache.m4: Import c-stack module. + * configure.ac (AC_CHECK_HEADERS_ONCE): Remove check for + siginfo.h, sys/wait.h. + (AC_CHECK_TYPES): Likewise for siginfo_t. + (AC_CHECK_MEMBERS): Likewise for sa_sigaction, ss_sp. + (AC_CHECK_FUNCS_ONCE): Likewise for sigaction, sigaltstack, + sigstack, sigvec, strerror. + (M4_cv_use_stackovf): Likewise for stack overflow detection. + * src/Makefile.am (m4_SOURCES): Don't build stackovf.c. + * src/stackovf.c: Delete. + * src/m4.h (setup_stackovf_trap): Delete. + * src/m4.c (stackovf_handler): Delete. + (main): Use c_stack_action instead of setup_stackovf_trap. If + stack overflow is detectable, don't limit -L artificially. + (usage): Document unlimited default on supported systems. + * doc/m4.texinfo (Limits control): Document new default nesting + limit. + * NEWS: Document this change. + +2008-07-30 Eric Blake <ebb9@byu.net> + + Avoid regressions in trace and comment output. + * doc/m4.texinfo (Trace): Add test. + (Comments): Likewise. + +2008-07-28 Eric Blake <ebb9@byu.net> + + Optimize iteration examples. + * examples/forloop2.m4: Avoid excess indir, by passing current + counter value as parameter. + * examples/foreachq3.m4: Avoid unneeded ifelse, by injecting an + ignored argument. + * doc/m4.texinfo (Improved forloop, Improved foreach): Update the + documentation to match. + +2008-07-26 Eric Blake <ebb9@byu.net> + + Give example for O(n) foreach on m4 1.4.x. + * examples/foreachq4.m4: New file. + * examples/Makefile.am (EXTRA_DIST): Distribute it. + * doc/m4.texinfo (Improved foreach): Document linear foreach with + m4 1.4.5 and greater. + +2008-07-17 Eric Blake <ebb9@byu.net> + + Fix missing copyright notices. + * acinclude.m4: Add copyright license details. + * c-boxes.el: Likewise. + * checks/get-them: Likewise. + * checks/check-them: Likewise. + +2008-07-13 Eric Blake <ebb9@byu.net> + + Add -g/--gnu command line argument. + * src/m4.c (usage): Mention the new option. + (long_options, OPTSTRING): Add new option. + (main): Use it. + * NEWS: Document this addition. + * doc/m4.texinfo (Limits control): Likewise. + (Incompatibilities): Mention future use of POSIXLY_CORRECT. + * THANKS: Update. + Reported by Joel E. Denny. + +2008-07-11 Eric Blake <ebb9@byu.net> + + Avoid bogus whitespace in @ovar, @dvar. + * doc/m4.texinfo (ovar, dvar): Add @c. + Based on patch by Ralf Wildenhues to Autoconf manual. + +2008-06-16 Eric Blake <ebb9@byu.net> + + Add missing const qualifications. + * src/builtin.c (builtin_tab): Declare array elements as const. + +2008-06-03 Eric Blake <ebb9@byu.net> + + Use progname module rather than rolling our own program_name. + * m4/gnulib-cache.m4: Import progname module. + * src/m4.c (program_name): Replace... + (main): ...with a call to set_program_name. + +2008-06-02 Eric Blake <ebb9@byu.net> + + Allow autobuild usage. + * m4/gnulib.cache: Import autobuild module. + +2008-05-23 Eric Blake <ebb9@byu.net> + + Make closing files be consistent. + * src/freeze.c (reload_frozen_state): Use close_stream. + Reported by Jean-Charles Longuet. + +2008-05-22 Eric Blake <ebb9@byu.net> + + Don't allow failure to freeze give exit status of 0. + * src/freeze.c (produce_frozen_state): Guarantee non-zero exit on + fopen failure. + * doc/m4.texinfo (Using frozen files): Test the fix. + * THANKS: Update. + Reported by Jean-Charles Longuet. + +2008-05-09 Eric Blake <ebb9@byu.net> + + Improve error message when frozen file is invalid. + * src/freeze.c (reload_frozen_state): Track current line. + [GET_STRING]: New helper macro. + +2008-05-09 Eric Blake <ebb9@byu.net> + + Detect integer overflow when loading frozen file. + * src/m4.h (includes): Add limits.h. + (_): Define as a no-op placeholder for now. + * src/freeze.c (reload_frozen_state) [GET_NUMBER]: Rewrite to fail + immediately on overflow. + Reported by Jim Meyering. + +2008-05-07 Eric Blake <ebb9@byu.net> + + Fix traceon regression introduced 2006-06-06. + * src/builtin.m4 (traceon): Only perform insertion if lookup + fails. + * doc/m4.texinfo (Trace): Test for the bug. + * NEWS: Document it. + +2008-05-03 Eric Blake <ebb9@byu.net> + + Document define_blind. + * doc/m4.texinfo (Ifelse): Add a new composite macro. + * THANKS: Update. + Suggested by Mike R. + +2008-04-24 Eric Blake <ebb9@byu.net> + + Add debugmode test. + * doc/m4.texinfo (Debug Levels): Test -di behavior. + (Changeword, Location): Correct examples. + * checks/check-them (examples): Update to account for recommended + location for running tests. + * doc/m4.texinfo (Debug Levels): Test this behavior. + +2008-04-21 Eric Blake <ebb9@byu.net> + + Fix spelling of attribution to Christopher Strachey. + * doc/m4.texinfo (History, Inhibiting Invocation): Fix typo. + * THANKS: Update. + Reported by Fernando Carrijo. + +2008-04-17 Eric Blake <ebb9@byu.net> + + Fix buildbot failure. + * doc/m4.texinfo (Diversions): Consume all of m4's output, in case + SIGPIPE is ignored. + * THANKS: Update. + Detected by Bob Proulx's buildbot. + +2008-04-17 Eric Blake <ebb9@byu.net> + + Avoid gcc shadowing warnings. + * src/builtin.c (m4_format): s/format/expand_format, so local + variables can be named format. + * src/format.c (format): Rename... + (expand_format): ...to this, and avoid the name index. + * src/input.c (push_file): Avoid the name close. + * src/m4.h (expand_format): Adjust prototype. + * src/output.c (threshold_diversion_CB): Avoid the name div. + +2008-04-15 Eric Blake <ebb9@byu.net> + + Another 'make installcheck' fix. + * doc/m4.texinfo (Diversions): s/m4/__program__/ in case + --program-prefix was active. + +2008-04-11 Eric Blake <ebb9@byu.net> + + Ensure --program-prefix doesn't regress. + * Makefile.am (DISTCHECK_CONFIGURE_FLAGS): Enforce change from + 2008-03-10 by testing it at 'make distcheck' time. + +2008-04-11 Eric Blake <ebb9@byu.net> + + Improve OS/2+emx build. + * src/m4.h [__EMX__]: OS/2 does not have a Unix-compatible + system(3), no matter what other macros it pre-defined. + * doc/m4.texinfo (Mkstemp): Rework test to avoid globbing failure + on OS/2. + * src/builtin.c (predefined_tab): Ensure all possible system + identifiers are defined, not just the first; the testsuite will + catch if multiple identifiers mistakenly made it through. + * THANKS: Update. + Reported by Elbert Pol. + +2008-04-09 Eric Blake <ebb9@byu.net> + + Remove redundant configure macros. + * configure.ac (AC_CANONICAL_BUILD, AC_CANONICAL_HOST) + (AC_SYS_LARGEFILE, AC_TYPE_SIZE_T): Delete, since gnulib does + this. + (AC_CHECK_HEADERS_ONCE): Remove limits.h. + +2008-08-07 Bruno Haible <bruno@clisp.org> (tiny change) + + Run m4 tests prior to gnulib unit tests. + * Makefile.am (SUBDIRS): Swap order of directories. + +2008-04-02 Eric Blake <ebb9@byu.net> + + Release Version 1.4.11. + * NEWS: Mention the release. + + Prepare for release. + * maint.mk (alpha): Check for PREV_VERSION setting sooner, and + remove tag operation. + (version-check): Enhance this check. + (prev-tarball): Depend on version-check. + (this-vc-tag): Delete, and mention need to run tag... + * HACKING: ...here, prior to make maintainer-distcheck. + Update the instructions to match this particular release process. + * Makefile.am (.version, announcement): Allow for VPATH build. + * cfg.mk (gnulib_dir): Likewise. + * doc/Makefile.am ($(srcdir)/m4.1): Include release number in man + page. + +2008-04-01 Eric Blake <ebb9@byu.net> + + Speed up index builtin. + * m4/gnulib-cache: Import strstr module. + * NEWS: Mention the speedup. + +2008-03-29 Eric Blake <ebb9@byu.net> + + Fix testsuite on mingw, OpenBSD. + * src/format.c (ARG_DOUBLE): Use strtod, not atof. + * src/Makefile.am (m4_LDADD): Use POW_LIB when needed. + * doc/m4.texinfo (Format): Add hex-float support. + * NEWS: Document this. + +2008-03-27 Eric Blake <ebb9@byu.net> + + Pull other useful doc fixes from branch-1.6. + * doc/m4.texinfo (Arguments): Enable test of + --warn-macro-sequence. + (Defn): Test length of builtin token. + (Builtin, Ifelse, Changequote): Add more regression tests. + +2008-03-27 Eric Blake <ebb9@byu.net> + + Add test for divert bug on 2007-05-28, patched 2007-07-21. + * doc/m4.texinfo (Diversions): Add test. + +2008-03-24 Eric Blake <ebb9@byu.net> + + Pull GNUmakefile from gnulib. + * m4/gnulib-cache.m4: Import gnumakefile module. + * GNUmakefile: Remove from version control; supplied by gnulib + instead. + * configure.ac (AC_INIT): Track intra-release version with + git-version-gen. + (AC_CONFIG_LINKS): Let gnulib do this now. + * Makefile.am (distclean-local): Likewise. + (EXTRA_DIST): Likewise. Also handle renamed files. + * (.version, dist-hook): Improve version handling. + * Makefile.cfg: Rename... + * cfg.mk: ...to this. + * Makefile.maint: Rename... + * maint.mk: ...to this. + (ME, makefile-check, m4-check): Use new macro instead of + hard-coded name. + * HACKING: Mention that maintainer rules should now work in VPATH + builds. + +2008-03-15 Eric Blake <ebb9@byu.net> + + Document join, in order to fix bug in m4wrap example. + * doc/m4.texinfo (Improved m4wrap): New node. + (Defn, Location): Enhance tests. + (Shift): Document the composite macro join. + (Incompatibilities): Move documentation of LIFO vs. FIFO... + (M4wrap): ...here, to match improved example. + +2008-03-10 Eric Blake <ebb9@byu.net> + + Allow 'make installcheck' with './configure --program-prefix'. + * checks/Makefile.in (program_transform_name): New macro. + (installcheck): Use it to transform name of m4 before testing. + * checks/check-them (m4): Add -m option, to allow testing m4 by a + different name. + * checks/get-them: Allow xout and xerr notation. + +2008-02-25 Eric Blake <ebb9@byu.net> + + Improve release process. + * configure.ac (AM_INIT_AUTOMAKE): Increase requirement, and add + dist-lzma. + * HACKING: Update for git release procedures. + * Makefile.cfg: New file. + * GNUmakefile: Use it. + * Makefile.maint (gzip_rsyncable, GZIP_ENV, GIT, VC, VC-tag) + (VERSION_REGEXP, this-vc-tag, my_distdir, null_AM_MAKEFLAGS) + (TMPDIR, gnulib-version): New macros, borrowed from coreutils. + (makefile-check, news-date-check, changelog-check, m4-check) + (vc-diff-check, maintainer-distcheck, vc-dist, my-distcheck) + (announcement, alpha, beta, major): New rules, borrowed from + coreutils. + (TEXI2HTML, cvs-release, update-timestamps, cvs-news, cvs-commit) + (cvs-dist): Delete. + * Makefile.am (EXTRA_DIST): Distribute new file. + +2008-02-19 Eric Blake <ebb9@byu.net> + + Clean up foreach example. + * doc/m4.texinfo (Foreach, Improved foreach): Document another + shortcoming in foreach.m4. + +2008-02-16 Eric Blake <ebb9@byu.net> + + Add regression test for multi-character quote recursion. + * examples/foreach2.m4: Use $0 rather than spelling out name. + * examples/foreachq2.m4: Likewise. + * examples/forloop2.m4: Likewise. + * examples/hanoi.m4: Likewise. + * examples/trace.m4: Likewise. + * doc/m4.texinfo (Improved forloop): Document advantage of $0. + (Improved foreach): Adjust dump from file. + +2008-02-13 Eric Blake <ebb9@byu.net> + + Fix texinfo grammar. + * doc/m4.texinfo (Incompatibilities): Use @. after capital. + (History): Use @: after abbreviations. + (M4exit): Use correct Latin abbreviation. + +2008-02-11 Eric Blake <ebb9@byu.net> + + Document behavior of __gnu__(). + * doc/m4.texinfo (Platform macros): Enhance test. + (Macro expansion): New test. + +2008-01-31 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> + + * checks/Makefile.in: Use @SET_MAKE@, and use @SHELL@ rather + than hard-coding /bin/sh. + * THANKS: Update. + Reported by Lawson Chan. + +2007-12-13 Paolo Bonzini <bonzini@gnu.org> (tiny change) + + * doc/m4.texinfo (Inhibiting Invocation): Fix quoting of a quoting + example. + * THANKS: Update. + Reported by Giovanni Toffetti. + +2007-12-07 Eric Blake <ebb9@byu.net> + + Minor security fix: Quote output of mkstemp. + * src/builtin.c (mkstemp_helper): Produce quoted output. + * doc/m4.texinfo (Mkstemp): Update the documentation and tests. + * NEWS: Document this change. + +2007-12-04 Eric Blake <ebb9@byu.net> + + Fix builds with OpenBSD make. + * doc/Makefile.am (HELP2MAN): New macro. + (man_MANS, m4.1): Fix rules for building m4.1 into srcdir. + * README: Update copyright. + * HACKING: Mention help2man and makeinfo dependencies. + +2007-11-22 Eric Blake <ebb9@byu.net> + + Security fix: avoid arbitrary code execution with 'm4 -F'. + * src/freeze.c (produce_frozen_state): Never pass raw file name as + printf format. + * NEWS: Document this fix. + +2007-11-07 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Pseudo Arguments): Test more corner cases. + +2007-11-05 Eric Blake <ebb9@byu.net> + + Use build-aux directory. + * configure.ac (PACKAGE, VERSION): Delete, since Automake does + this now. + (AC_CONFIG_AUX_DIR): Add, with auxiliary files in build-aux + instead of the top level. + (AC_INIT_AUTOMAKE): Increase requirement, and add dist-lzma. + * Makefile.am (EXTRA_DIST): Gnulib now manages gendocs.sh. + * bootstrap: Adjust accordingly. + * m4/gnulib-cache.m4: Add --aux-dir option. + * doc/Makefile.am (m4.1): Rewrite rule to use build-aux/missing. + +2007-10-31 Eric Blake <ebb9@byu.net> + + Test more corner cases. + * doc/m4.texinfo (Changecom, Pseudo Arguments): Beef up tests. + (Improved foreach): Document alternate foreachq style. + +2007-10-28 Eric Blake <ebb9@byu.net> + + More test coverage for autoconf usage patterns. + * doc/m4.texinfo (Inhibiting Invocation, Pseudo Arguments) + (Builtin): Add new undocumented tests. + (Shift): Document cond macro, and add new test. + +2007-10-27 Eric Blake <ebb9@byu.net> + + Document one use of changequote(`(',`)'). + * doc/m4.texinfo (Changequote): Add new test, based on recent + autoconf addition of m4_expand. + +2007-10-22 Eric Blake <ebb9@byu.net> + + Never let printf failures go undetected. + * m4/gnulib-cache.m4: Import announce-gen, git-version-gen, + intprops, strtod, and xprintf modules. Remove deprecated free + module. Replace vasprintf-posix and xvasprintf with + xvasprintf-posix. + * src/m4.h: Include xprintf.h. + * src/builtin.c (ntoa): Export. + (m4_errprint): Adjust all *printf callers. + * src/debug.c (debug_message_prefix, trace_format): Likewise. + * src/freeze.c (produce_frozen_state): Likewise. + * src/input.c [DEBUG_INPUT]: Likewise. + * src/m4.c (usage): Likewise. + * src/m4.h (DEBUG_PRINT1, DEBUG_PRINT3, DEBUG_MESSAGE) + (DEBUG_MESSAGE1, DEBUG_MESSAGE2): Likewise. + * src/output.c (shipout_text, freeze_diversione): Likewise. + * src/path.c [DEBUG_INCL]: Likewise. + * src/stackovf.c (process_sigsegv) [DEBUG_STKOVF]: Likewise. + * src/symtab.c [DEBUG_SYM]: Likewise. + +2007-10-17 Eric Blake <ebb9@byu.net> + + Fix 'm4 -F file -t undefined'. + * src/freeze.c (produce_frozen_state): Avoid core dump. + * doc/m4.texinfo (Using frozen files): Test for the bug. + * NEWS: Mention the fix. + +2007-10-09 Eric Blake <ebb9@byu.net> + + Avoid regexp regression. + * doc/m4.texinfo (Regexp, Patsubst): Test \ expansion. + +2007-10-02 Eric Blake <ebb9@byu.net> + + Add more examples and tests. + * doc/m4.texinfo (Patsubst): Use the examples directory. Also + document shortfall. + (Improved capitalize): New node. + (Index macro, Regexp): Test more code paths. + * examples/capitalize.m4: Update to match manual. + * examples/capitalize2.m4: New file. + * examples/foreachq3.m4: Likewise. + * examples/join.m4: Likewise. + * examples/loop.m4: Likewise. + * examples/wraplifo.m4: Likewise. + * examples/wraplifo2.m4: Likewise. + * examples/Makefile.am (EXTRA_DIST): Distribute new files. + +2007-09-24 Eric Blake <ebb9@byu.net> + + Create .gitignore alongside .cvsignore. + * bootstrap (LC_ALL): Set up front. + (version control) Borrow idea from head, to avoid churn in + m4/.*ignore files modified by gnulib-tool. + +2007-09-13 Eric Blake <ebb9@byu.net> + + * AUTHORS: Fix typo. + +2007-09-07 Eric Blake <ebb9@byu.net> + + * AUTHORS: Simplify, to match libtool and autoconf layout. + * THANKS: Sync with head. + +2007-08-10 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Compatibility): Sync with head. + +2007-08-10 Konrad Schwarz <konrad.schwarz@siemens.com> (tiny change) + and Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Defn): Update wording. + +2007-08-09 Eric Blake <ebb9@byu.net> + + POSIX requires defn(`a',`b') to concatenate definitions. + * src/builtin.c (m4_defn): Allow multiple arguments, but warn if + trying to mix a builtin with anything else. + * doc/m4.texinfo (Defn): Document a use for this POSIX + requirement. + (Incompatibilities): Update to match current status. + * NEWS: Document this change. + * THANKS: Update. + Reported by Konrad Schwarz. + +2007-08-04 Eric Blake <ebb9@byu.net> + + Normalize all GPL license notices. + * GNUmakefile: Update license wording. + * Makefile.am: Likewise. + * Makefile.maint: Likewise. + * bootstrap: Likewise. + * commit: Likewise. + * configure.ac: Likewise. + * checks/Makefile.in: Likewise. + * doc/Makefile.am: Likewise. + * examples/Makefile.am: Likewise. + * src/Makefile.am: Likewise. + * src/builtin.c: Likewise. + * src/debug.c: Likewise. + * src/eval.c: Likewise. + * src/format.c: Likewise. + * src/freeze.c: Likewise. + * src/input.c: Likewise. + * src/m4.c: Likewise. + * src/m4.h: Likewise. + * src/macro.c: Likewise. + * src/output.c: Likewise. + * src/path.c: Likewise. + * src/stackovf.c: Likewise. + * src/symtab.c: Likewise. + +2007-07-21 Eric Blake <ebb9@byu.net> + + Fix regression on NetBSD from 2007-05-28. + * src/output.c (m4_tmpopen): Explicitly reset append-mode stream + position to byte 0. + * NEWS: Document this fix. + * THANKS: Update. + Reported by Thomas Klausner. + +2007-07-20 Eric Blake <ebb9@byu.net> + + Fix 'make distcheck' issues. + * Makefile.am (EXTRA_DIST): No need to distribute + gpl-3.0.texi.diff anymore. + * m4/gnulib-cache.m4: Update to latest gnulib. + +2007-07-14 Eric Blake <ebb9@byu.net> + + Reflect upstream license .texi changes. + * doc/m4.texinfo (Copying): Rename node... + (GNU General Public License): ...to this. + (GNU Free Documentation License): Adjust node location. + * local/doc/gpl-3.0.texi.diff: Remove file. + +2007-07-10 Eric Blake <ebb9@byu.net> + + Start 1.4.10a. + * configure.ac (AC_INIT): Bump version number. + * NEWS: Start changes since 1.4.10. + * doc/m4.texinfo (History): Mention 1.4.11. + (Copying This Package, Copying This Manual): Add index entries. + * local/lib/version-etc.c.diff: Delete, now that gnulib has been + updated. + * Makefile.am (EXTRA_DIST): Remove dead file. + +2007-07-09 Eric Blake <ebb9@byu.net> + + Release Version 1.4.10. + * doc/Makefile.am (m4_TEXINFOS): Distribute gpl-3.0.texi. + * Makefile.am (EXTRA_DIST): Distribute gnulib diffs. + * configure.ac (AC_INIT): Bump version number. + * NEWS: Describe changes since 1.4.9. + + * src/format.c: Missed a GPLv3 conversion. + + Avoid undefined behavior of %.*c in printf. + * src/format.c (format): Special case %c. + * TODO: Document that more remains to be done. + * NEWS: Document the fix. + +2007-07-05 Eric Blake <ebb9@byu.net> + + Fix up gnulib-tool usage. + * m4/gnulib-cache.m4: Change local-dir to local, not `.'. + * version-etc.c.diff: Move to... + * local/lib/version-etc.c.diff: ...here. + * gpl-3.0.texi.diff: Move to... + * local/doc/gpl-3.0.texi.diff: ...here. + +2007-07-04 Eric Blake <ebb9@byu.net> + + Upgrade to GPL version 3 or later. + * bootstrap: Pick up GPLv3. + * m4/gnulib-cache.m4: Augment with 'gnulib-tool + --local-dir=. --import gpl-3.0'. + * doc/m4.texinfo (Copying This Package): New appendix. + * NEWS: Mention this change. + * README: Mention why some files still claim to be version 2. + * version-etc.c.diff: New file, to make sure --version claims + correct GPL version. Temporary until gnulib makes move. + * gpl-3.0.texi.diff: New file, to allow inclusion of GPLv3 as + appendix, rather than section, of the manual. + * GNUmakefile: Update to new license. + * Makefile.am: Likewise. + * Makefile.maint: Likewise. + * commit: Likewise. + * configure.ac: Likewise. + * checks/Makefile.in: Likewise. + * doc/Makefile.am: Likewise. + * examples/Makefile.am: Likewise. + * src/Makefile.am: Likewise. + * src/builtin.c: Likewise. + * src/debug.c: Likewise. + * src/eval.c: Likewise. + * src/freeze.c: Likewise. + * src/input.c: Likewise. + * src/m4.c: Likewise. + * src/m4.h: Likewise. + * src/macro.c: Likewise. + * src/output.c: Likewise. + * src/path.c: Likewise. + * src/stackovf.c: Likewise. + * src/symtab.c: Likewise. + +2007-06-26 Eric Blake <ebb9@byu.net> + + * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import assert'. + +2007-06-26 Karl Berry <karl@freefriends.org> (tiny change) + + Match Free Software Directory categories. + * doc/m4.texinfo (dircategory): Update. + +2007-05-31 Eric Blake <ebb9@byu.net> + + * src/output.c (output_text): Fix regression from 2007-05-28. + * doc/m4.texinfo (History): Mention 1.4.10. + (Format): Make testsuite output easier to debug. + +2007-05-29 Eric Blake <ebb9@byu.net> + + Start 1.4.9c. + * configure.ac (AC_INIT): Bump version number. + * NEWS: Start changes since 1.4.9b, and fix typo. + + Beta Release Version 1.4.9b. + * configure.ac (AC_INIT): Bump version number. + * NEWS: Describe changes since 1.4.9. + + Improve format support. + * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import + vasprintf-posix'. + * src/format.c (format): Parse %'hhd, %a, %A. Avoid calling + printf with too few arguments, as in format(%*.*d,-1,-1,1). + * doc/m4.texinfo (Format): Expand tests, and improve + documentation. + * NEWS: Document this change. + +2007-05-28 Eric Blake <ebb9@byu.net> + + Fix large diversion corner cases, including 1.4.8 regression. + * src/output.c (m4_tmpfile, m4_tmpopen): Simplify use of errno. + (make_room_for): Use NULL, not 0, for pointers. + (insert_diversion_helper): Avoid using rewind. + (freeze_diversions): Allow freezing large diversions. + * NEWS: Document this fix. + + Also run gnulib unit tests during make check. + * m4/gnulib-cache.m4: Augment with 'gnulib-tool + --tests-base=tests --with-tests'. + * configure.ac (AC_CONFIG_FILES): Build gnulib testdir. + * Makefile.am (SUBDIRS): Run gnulib tests before ours. + +2007-05-25 Eric Blake <ebb9@byu.net> + + Backport prompts in examples from head. + * src/macro.c (expand_macro): Shorten message. + * doc/m4.texinfo (Manual, Command line files, Comments) + (Inhibiting Invocation, Macro Arguments, Macro expansion, Indir) + (Builtin, Shift, Forloop, Foreach, Dumpdef, Trace, Debug Levels) + (Debug Output, Include, Format, Syscmd, Mkstemp, Location) + (Using frozen files, Improved forloop, Improved foreach): Add + prompts to examples. + * checks/get-them: Ignore prompts in examples. + + Fix sync line interaction with multiline comments. + * doc/m4.texinfo (Other Incompatibilities): Add example, and + document bug in --syncline/divert interaction. + (Preprocessor features): Augment test. + * src/m4.h (output_text): Export. + (shipout_text, next_token): Add parameter. + * src/freeze.c (reload_frozen_state): Don't interfere with + synclines when reloading state. + * src/output.c (output_text): Export. + (shipout_text): Take new parameter for start line of token. + Output at most one syncline per token. + * src/input.c (next_token): Report line where multiline tokens + start. + * src/macro.c (expand_input, expand_token, expand_argument): + Adjust callers so that line is passed from input to output. + * NEWS: Document this fix. + Reported by Sergey Poznyakoff. + + Test -s in testsuite. + * doc/m4.texinfo (Preprocessor features): Add a test. + * checks/get-them: Support extra options in testsuite. + * checks/check-them (examples): Use extra options. + * THANKS: Update. + Reported by Sergey Poznyakoff. + +2007-05-24 Eric Blake <ebb9@byu.net> + + Support POSIX flush semantics on all platforms. + * m4/gnulib-cache.m4: Remove closeout, and augment with + 'gnulib-tool --import closein fflush'. + * src/m4.h (includes): Use closein, not closeout. + * src/m4.c (main): Ensure stdin is flushed when not all input is + consumed. + (process_file): No return needed. + * src/debug.c (debug_flush_files): Rely on gnulib module, rather + than excluding mingw. + * NEWS: Document this change. + + Work around cygwin and mingw fseeko bugs. + * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import fseeko'. + * src/debug.c (debug_flush_files): Prefer fseeko over fseek. + +2007-04-25 Eric Blake <ebb9@byu.net> + + Fix negative division within eval, regression of 2007-01-06. + * doc/m4.texinfo (Eval): Catch this bug. + * src/eval.c (mult_term): Fix it. + * NEWS: Document this. + * THANKS: Update. + Reported by Cesar Strauss. + +2007-04-23 Eric Blake <ebb9@byu.net> + + Start 1.4.9a. + * configure.ac (AC_INIT): Bump version number. + * NEWS: Start changes since 1.4.9. + +2007-03-23 Eric Blake <ebb9@byu.net> + + Release 1.4.9: + * configure.ac (AC_INIT): Bump version number. + * NEWS: Describe changes since 1.4.8b. + +2007-03-16 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Mkstemp): Tweak wording. + * src/output.c (output_init): Adjust to latest gnulib. + +2007-03-15 Eric Blake <ebb9@byu.net> + + Avoid Tandem/NSK's broken long long (without a symmetric unsigned + long long, it confuses gnulib). + * configure.ac (AC_TYPE_LONG_LONG_INT): Declare long long broken + if unsigned long long doesn't work. + * THANKS: Update. + Reported by Matthew Woehlke. + +2007-03-07 Eric Blake <ebb9@byu.net> + + * AUTHORS: Update. + * doc/m4.texinfo: Minor tweaks, avoid makeinfo warning. + +2007-03-01 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo: Pick up more index entries from head. Follow + more texinfo recommendations. + (Sysval): Improve tests. + + Avoid overfull \vbox warning from texinfo, due to indices that + weren't quite big enough to split across page boundaries. + * doc/m4.texinfo: Add lots of concept index entries. + (Concept Index): Move to be last, as recommended by texinfo + manual. + (Define, Arguments, Pseudo Arguments): Add more function entries. + +2007-02-28 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Eval): Clean up wording to reflext POSIX XCU ERN + 137. + (Pseudo Arguments): Add useful example. + + * doc/m4.texinfo (Pushdef, Incompatibilities): Clean up wording to + reflect POSIX XCU ERN 118. + + * src/m4.h (DEFAULT_MACRO_SEQUENCE): Factor out from... + * src/m4.c (usage): ...here,... + * src/builtin.c (set_macro_sequence): ...and here. + (define_user_macro): Fix typo. + * doc/m4.texinfo (Preprocessor features, Arguments): Fix minor + inaccuracies. + (Shift): Document composite macro argn for portably getting at + positional parameters beyond 9. + * configure.ac (AC_INIT): Bump version number. + * NEWS: Start changes of 1.4.8c. + +2007-02-24 Eric Blake <ebb9@byu.net> + + Beta Release 1.4.8b: + * configure.ac (AC_INIT): Bump version number. + * NEWS: Describe changes since 1.4.8. + + Reserve all uses of raw ${} in macro definitions, not just + ${<digit>}. + * src/builtin.c (set_macro_sequence): Change default macro + sequence. + * doc/m4.texinfo (Operation modes): Update to match. + * src/m4.c (usage): Likewise. + * NEWS: Likewise. + +2007-02-23 Eric Blake <ebb9@byu.net> + + * src/m4.h (includes): Update to latest gnulib. + +2007-02-08 Eric Blake <ebb9@byu.net> + + Rename --warn-syntax to --warn-macro-sequence[=regex], to make it + more flexible, and so that autoconf can use it. + * src/m4.h (set_macro_sequence, free_macro_sequence): New + prototypes. + * src/builtin.c (macro_sequence_buf, macro_sequence_regs) + (macro_sequence_inuse, set_macro_sequence, free_macro_sequence): + New variables and functions. + (define_user_macro): Allow flexibility in regular expression used + to trigger warning. + * src/m4.c (warn_syntax): Delete. + (usage, WARN_MACRO_SEQUENCE_OPTION, main): Implement changed + spelling of option, along with optional argument. + * doc/m4.texinfo (Operation modes, Arguments): Document this + change. + * NEWS: Document this change. + +2007-02-05 Eric Blake <ebb9@byu.net> + + * m4/gnulib-cache.m4: Module strstr no longer exists. + + Avoid bool bitfields, as they don't work on AIX. + * src/m4.h (bool_bitfield): New typedef. + (struct symbol, struct builtin): Use it. + * src/input.c (struct input_block): Likewise. + Reported by Albert Chin. + + * doc/m4.texinfo (Sysval): Avoid SIGPIPE in test as unreliable. + Reported by Albert Chin. + * THANKS: Update. + +2006-06-18 Bruno Haible <bruno@clisp.org> (tiny change) + + * doc/m4.texinfo (Input processing): Further clarifications. + +2007-02-03 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Input processing, Quoting Arguments): Beef up + the examples. + Reported by Bruno Haible. + +2007-02-01 Eric Blake <ebb9@byu.net> + + * src/m4.c (fatal_warnings): New variable. + (usage): Document new -E behavior. + (main): Make -E an additive option. + (m4_error, m4_error_at_line): Change exit status when required. + * NEWS: Document this change. + * doc/m4.texinfo (Operation modes): Likewise. + Reported by Ralf Wildenhues. + +2007-01-27 Eric Blake <ebb9@byu.net> + + * src/m4.h (warn_syntax): Declare. + (init_pattern_buffer): Export. + * src/m4.c (warn_syntax, usage, WARN_SYNTAX_OPTIONS) + (long_options, main): Implement new option. + * src/builtin.c (init_pattern_buffer): Allow NULL regs argument. + (define_user_macro): Warn on $11 and ${1} if requested. + * src/input.c (init_pattern_buffer): Delete duplicate method. + * doc/m4.texinfo (Operation modes): Document it. + (Arguments): Document future direction of ${11} vs. $11. + (Incompatibilities): Fix wording on POSIX limitations. + * checks/get-them: Parse @{ and @} correctly. + * NEWS: Document this change. + +2007-01-26 Eric Blake <ebb9@byu.net> + + * src/builtin.c (includes): Adjust to gnulib changes. + +2007-01-15 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo: Pull in various improvements from head. + * src/builtin.c (include): Alter exit status on failure. + * NEWS: Document this fix. + +2007-01-13 Eric Blake <ebb9@byu.net> + + * configure.ac (AC_CHECK_MEMBERS): Check for stack_t.ss_sp, and + assume the fallback of ss_base for BSDI 4.0.1. + * src/stackovf.c (setup_stackovf_trap) [HAVE_SIGALTSTACK && + ! HAVE_STACK_T_SS_SP]: Use this check. + Reported by Chris McGuire. + * THANKS: Update. + * NEWS: Document the improvement. + +2007-01-09 Eric Blake <ebb9@byu.net> + + * src/eval.c (ASSIGN): New enumerator. + (eval_lex): Recognize '='. + (equality_term): Treat '=' like '==', but warn that it is + deprecated. + * doc/m4.texinfo (Eval): Document and test this. + (Incompatibilities): Document the POSIX incompatibility. + * NEWS: Document this change. + +2007-01-06 Eric Blake <ebb9@byu.net> + + * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import stdint'. + * checks/check-them: Record expected exit status. + * checks/get-them: Check exit status. + * src/m4.h (eval_t, unsigned_eval_t): Delete, use POSIX int32_t + instead. + * src/builtin.c: All users changed. + * src/eval.c: Likewise. Also document where we are triggering + undefined or implementation-defined behavior. + (BADOP, NEGATIVE_EXPONENT, INVALID_OPERATOR, eval_lex, evaluate) + (logical_or_term, logical_and_term, logical_not_term, not_term) + (equality_term, unary_term): Port from head to follow POSIX + semantics. + (exp_term): Reject 0**0 as undefined. + * doc/m4.texinfo (History): Mention 1.4.9. + (Format, Incompatibilities): Update to document POSIX compliance. + * NEWS: Document this change. + +2007-01-04 Eric Blake <ebb9@byu.net> + + * NEWS: Document previous fix. + * THANKS: Update. + +2007-01-04 Sami Liedes <sliedes@cc.hut.fi> (tiny change) + + Fix Debian bug 405594, introduced 2006-11-01 from a bad + copy-n-paste from head. + * src/m4.c (main): Use correct file name after --. + +2007-01-04 Eric Blake <ebb9@byu.net> + + Fix regression from 1.4.7 in large file handling on some + platforms, introduced on 2006-10-13. + * configure.ac (AC_LARGE_SYSFILE): Guarantee that large files + will be handled. + * NEWS: Document this fix. + +2007-01-03 Eric Blake <ebb9@byu.net> + + * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import + version-etc-fsf'. + * src/m4.c (AUTHORS, main): Use FSF wording for --version (plus + it bumps the copyright year). + +2006-12-27 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Patsubst): Fix typo. + +2006-12-16 Eric Blake <ebb9@byu.net> + + * src/m4.c (main): Check for errors when closing stdin. + +2006-12-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> + + * doc/m4.texinfo: Fix some typos. + +2006-12-09 Eric Blake <ebb9@byu.net> + + * configure.ac (AC_INIT): Bump version number. + * NEWS: Start changes of 1.4.8a. + +2006-11-20 Eric Blake <ebb9@byu.net> + + Release 1.4.8: + * configure.ac (AC_INIT): Bump version number. + * NEWS: Describe changes since 1.4.7. + +2006-11-16 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Include, Search Path, Diversions, Divert): + Minor tweaks noticed while porting to head. + +2006-11-14 Eric Blake <ebb9@byu.net> + + * src/output.c (cleanup_tmpfile, freeze_diversions): Clean up + spent iterators. + (m4_tmpname): Avoid memory leak. + +2006-11-13 Eric Blake <ebb9@byu.net> + + * src/output.c (cleanup_tmpfile): Avoid double error message when + umask is prohibitive. + (m4_tmpname, m4_tmpopen, m4_tmpclose, m4_tmpremove): New + functions. + (m4_tmpfile): Add parameter, move cloexec action here. + (make_room_for): Adjust caller. Don't keep too many files open. + (insert_diversion_helper): Unlink emptied temp files. + (make_diversion): Don't keep too many files open. + * doc/m4.texinfo (Diversions): Tweak wording, now that open file + descriptors are no longer a limiting factor. + * NEWS: Document this change. + + Backport sparse diversion handling from head. + * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import + avltree-oset'. + * src/output.c (struct m4_diversion): Rename from struct + diversion, and update members. All users changed. + (diversion_table): Change to an ordered set, instead of an array. + (div0): New storage for diversion 0. + (diversions): No longer needed. + (free_list): New list to allow recycling diversion storage. + (diversion_storage): New storage to reduce malloc overhead. + (cmp_diversion_CB, threshold_diversion_CB): New callbacks. + (output_init, output_exit, cleanup_tmpfile, make_room_for) + (make_diversion): Handle new diversion storage scheme. + (insert_diversion_helper): New function. + (insert_diversion, undivert_all, freeze_diversions): Use it. + * doc/m4.texinfo (Divert, Diversions): Move hidden test of memory + exhaustion to visible test of large diversion numbers. + * NEWS: Document this fix. + +2006-11-11 Eric Blake <ebb9@byu.net> + + * src/builtin.c (m4_translit): Slight optimization. + + * src/m4.h (to_uchar): Depend on HAVE_INLINE. + + * src/builtin.c: Remove unnecessary casts. + (expand_ranges): Make 8-bit clean. + * doc/m4.texinfo (Translit): Add tests and wording. + * NEWS: Document this fix. + +2006-11-07 Eric Blake <ebb9@byu.net> + + * src/m4.h (output_exit): New prototype. + * src/m4.c (main): Use it. + * src/output.c (cleanup_tmpfile): Close files before removing + directory. + (insert_diversion): Check for failure. + (output_exit): Avoid memory leak. + * doc/m4.texinfo (Diversions): Test this bug. + + * doc/m4.texinfo (Esyscmd, Errprint): Minor touchups. + +2006-11-01 Eric Blake <ebb9@byu.net> + + Allow C++ compilation on Linux, as a safety measure in type + checking. + * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import + stdbool'. + * src/m4.h (hack_symbol, hack_all_symbols): Use full prototype. + (boolean): Kill this, and use stdbool.h instead. + * src/debug.c, src/eval.c, src/input.c, src/macro.c, src/m4.c: + * src/output.c, src/symtab.c: All users changed. + * src/symtab.c (hack_all_symbols): Update prototype. + * src/builtin.c (dump_symbol, set_trace): Update signature. + (m4_dumpdef, m4_traceon, m4_traceoff): Update callers. + (mkstemp_helper, m4_m4wrap, expand_ranges, m4_translit): Allow + C++ compilation. + * src/debug.c (trace_flush): Likewise. + * src/freeze.c (reload_frozen_state): Likewise. + * src/input.c (push_file, push_string_finish, push_wrapup): + (token_bottom, next_token): Likewise. + * src/m4.c (main): Likewise. + + * doc/m4.texinfo (Invoking m4): Update according to POSIX 200x + draft wording. + * src/m4.h (m4_path_search): Tweak signature. + * src/path.c (m4_path_search): Likewise. + * src/builtin.c (include): Update caller. + * src/m4.c (main): Allow -D, -U, -t, and -s to be interspersed + with file names. Don't write to **argv. + (process_file): New helper method. + * NEWS: Document this fix. + +2006-10-31 Eric Blake <ebb9@byu.net> + + * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import strstr'. + * doc/m4.texinfo (Translit): Improve the documentation. + * src/builtin.c (m4_translit): Optimize to O(n) instead of O(n^2) + algorithm. + (m4_index): Simplify, and speed up slightly. + * NEWS: Document this fix. + +2006-10-28 Eric Blake <ebb9@byu.net> + + * src/input.c (set_quotes): Don't allow empty end-quote with + non-empty start-quote. + (set_comment): Likewise for end-comment. + * src/builtin.c (m4_changecom): Adjust caller. + * doc/m4.texinfo (Changequote, Changecom): Update documentation to + match behavior. + (Incompatibilities): Document another POSIX bug. + * NEWS: Mention this change. + +2006-10-27 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> + + * examples/Makefile.am (EXTRA_DIST): Distribute recently-added + files. + +2006-10-26 Eric Blake <ebb9@byu.net> + + Silence -Wwrite-strings -Wpointer-arith warnings. + * src/builtin.c (define_user_macro): Allow NULL argument. + (m4_builtin, m4_indir): Cast away const of "". + * src/format.c (format): Likewise. + * src/macro.c (collect_arguments): Likewise. + (expand_macro): Avoid math on void*. + * src/m4.c (main): Adjust caller. + * src/output.c (freeze_diversions): Detect off_t overflow. + + * src/input.c (pop_input): Remove unnecessary code. + +2006-10-25 Eric Blake <ebb9@byu.net> + + * src/symtab.c (symtab_init): Avoid size_t overflow. + * src/output.c (make_diversion): Avoid size_t overflow. + * doc/m4.texinfo (Diversions): Test this fix. + * src/input.c (input_block): Remove unused member. Reduce size + of struct. + (push_file, pop_input): Avoid useless assignment. + * NEWS: Document the bug fix. + + Redo location tracking. Instead of having just files track the + line to return to when popping input, now all input blocks track + their current line. + * src/input.c (INPUT_STRING_WRAP, INPUT_FILE_INIT): No longer + needed. + (input_block): Have line and file storage for all input types, and + rename some members. + (input_change): New global flag. + (push_file, push_macro, push_string_init, push_wrapup): Store + location. + (push_string_finish, pop_input, pop_wrapup): Notice changes in + input blocks. + (peek_input): Adjust to new member names. + (next_char, next_char1): Adjust location if needed. + (skip_line): Simplify restoring location. + * doc/m4.texinfo (Location): Augment the test to catch line + location of expansion of multi-line arguments. + Reported by Stepan Kasal. + +2006-10-23 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Macro Arguments): Document that leading space + in argument collection stops at macro expansion. + (Incompatibilities): Document POSIX whitespace wording issue. + +2006-10-20 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo: Trailing '@comment' doesn't format nicely in + TeX, so recognize '@w{ }' instead. Likewise, @code{_name} at the + end of a TeX line splits incorrectly. + (Foreach, Improved foreach): Write these sections, borrowing ideas + from CVS head and from m4sugar. + * checks/get-them: Accomodate new way to show trailing space in + examples. + * examples/foreach.m4: Make usable in documentation. + * examples/foreachq.m4: New file. + * examples/foreachq2.m4: New file. + * examples/foreach2.m4: New file. + * NEWS: Document the documentation updates. + +2006-10-19 Eric Blake <ebb9@byu.net> + + * src/builtin.c (mkstemp_helper, m4_mkstemp): New functions. + (m4_maketemp): Provide traditional behavior. + * doc/m4.texinfo (Mkstemp): Rename from Maketemp. Document the + new `mkstemp' macro and the flaws of the old `maketemp'. + (Incompatibilities): Move maketemp discussion to... + (Extensions): ...here, since -G now supresses the GNU extension. + * NEWS: Document this. + + * examples/forloop.m4: Simplify. + * examples/forloop2.m4: New file. + * examples/quote.m4: New file. + * doc/m4.texinfo (Loops): Rename to... + (Shift): ...this node. + (Forloop, Foreach, Improved forloop, Improved foreach): New + nodes. + +2006-10-17 Eric Blake <ebb9@byu.net> + + * m4/gnulib-cache.m4: Update with 'gnulib-tool --import + config-h'. + * configure.ac (AC_CONFIG_HEADERS): Create config.h alongside + gnulib headers, rather than in top directory. + * src/Makefile.am (AUTOMAKE_OPTIONS): Add nostdinc, to reduce make + output clutter. + +2006-10-16 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo: Backport some minor cleanups from head. + (Cleardivert): Rename from cleardiv. + + * doc/m4.texinfo (Invoking m4): Promote to a chapter, instead of + a section of Preliminaries. + (Operation modes, Preprocessor features, Limits control) + (Frozen state, Debugging options, Command line files): Subdivide + into new sections. + (Input processing, Quoting Arguments, Define, Arguments) + (Cleardiv, Format, M4exit): Fix grammar of references. + (Inhibiting Invocation, Macro Arguments, Builtin, Trace) + (Debug Levels, Debug Output, Include, Search Path, Divert) + (Platform macros, Syscmd, Location, Extensions): Point to new + sections. + (Top, Loops, Include, Undivert, Location, Incompatibilities): + Improve file references. + +2006-10-14 Eric Blake <ebb9@byu.net> + + * m4/input.c (file_clean): Don't close stdin twice, POSIX says it + is not portable. + Reported by Ralf Wildenhues. + + * src/builtin.c (m4_undivert): Check for read error. + +2006-10-13 Eric Blake <ebb9@byu.net> + + * src/m4.h (UNIX, W32_NATIVE, OS2): Move platform checks after + header files are included, since <unistd.h> can affect the tests. + * THANKS: Updated. + Reported by Martin Koeppe. + + Backport head's usage of clean-temp module, as it is cleaner than + using tmpfile-safer. + * m4/gnulib-cache.m4: Augment with 'gnulib-tool --import + clean-temp closeout', and remove tmpfile-safer. + * src/m4.h (includes): Adjust. + (m4_path_search): Rename from path_search, to avoid collision + with gnulib. + * src/m4.c (main): Install closeout handler. Adjust caller. + (usage): Now done by closeout module. + * src/builtin.c (m4_m4exit): Likewise. + (m4_undivert, include): Adjust callers. + * src/freeze.c (reload_frozen_state): Likewise. + * src/path.c (m4_path_search): Rename from path_search. + * src/output.c (output_temp_dir): New variable. + (cleanup_tmpfile, m4_tmpfile): New functions, from head. + (insert_diversion, make_room_for): Use them. + * doc/m4.texinfo (Diversions): Document this, and add a test. + (Improved fatal_error): Fix typo. + (Maketemp): Port test to mingw, and no longer hide from + documentation. + * NEWS: Document the change in TMPDIR behavior. + + * configure.ac (m4_pattern_forbid): Narrow the range of forbidden + macros, to work with recent gnulib-tool update. + + * src/builtin.c (m4_builtin, m4_indir): Allow transparent + handling of defn results. + * doc/m4.texinfo (Builtin, Indir): Add test cases. + * NEWS: Document this. + +2006-10-12 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Location): Fix typo in previous commit. + (Changeword): Catch one more case. + * src/input.c (skip_line): Fix case when outer file used macro to + supply the \n. + +2006-10-11 Eric Blake <ebb9@byu.net> + + * src/input.c (enum input_type): Add additional types, to shave + time off the common case. + (push_wrapup): Wrapped strings remember location. + (push_string_finish): Normal strings carry no location. + (push_file): Start new files uninitialized. + (peek_input, next_char_1): Optimize common cases by updating + location only on new input types. + (pop_input): Update to honor new input types. + (skip_line, push_string_finish): Fix regression in previous patch + when dnl is not followed by newline in included file. + (push_string_init): Initialize all fields of INPUT_STRING sooner. + (peek_token): Simplify. + (peek_input): Don't pop input files on peek, so that __file__ and + __line__ as last token of include file work correctly. + * doc/m4.texinfo (History): Mention 1.4.8. + (Answers): Split into sections, one per answer. + (Improved exch, Improved cleardivert, Improved fatal_error): New + nodes. + (Dnl, M4wrap, Location, M4exit, Improved fatal_error): Update to + new m4wrap location semantics. + (Changeword): Add test that caught the regression. + * NEWS: Document this. + + * src/macro.c (expand_macro): In macro expansion errors, report + line number at open parenthesis. + * src/input.c (next_token): Fix off-by-one bug in reporting end + of file in unterminated comment and string. + (file_names): New obstack, necessary since expand_macro now hangs + on to file names longer than the files remain open. + (input_init): Initialize new obstack. + (push_file): Use new obstack. Delay updates to current_file + until after expand_macro has restored state. + (peek_input, next_char_1): Update current_file if necessary. + (pop_wrapup): Release memory. + * doc/m4.texinfo (Macro Arguments, Changequote, Changecom): Catch + the off-by-one bug. + (Dnl): Update to the new location reporting rules. + * NEWS: Document these changes. + +2006-10-10 Eric Blake <ebb9@byu.net> + + * src/macro.c (argc_stack, argv_stack): New variables for sharing + obstacks across multiple macro calls. + (expand_input): Initialize and tear down stack once per input + file, instead of once per macro. + (expand_macro): Reuse existing stacks when possible. + (collect_arguments): Simplify slightly. + + * src/path.c (include_env_init): Fix botched patch application. + Reported by Ralf Wildenhues. + +2006-10-09 Eric Blake <ebb9@byu.net> + + * src/m4.c (usage, main): Detect write failures to stderr. + * src/builtin.c (m4_m4exit): Likewise. + * NEWS: Document this. + + * src/macro.c (expand_macro): Allow --nesting-limit=0 to remove + the limit. + * NEWS: Document this. + * doc/m4.texinfo (Invoking m4): Likewise. + +2006-10-09 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> + + * src/path.c (include_env_init): Copy the string returned + by getenv before overwriting it; POSIX disallows this. + +2006-10-09 Eric Blake <ebb9@byu.net> + + * src/m4.c (main): Defer debugfile until after --help. + * configure.ac (AC_INIT): Bump version number. + * NEWS: Start changes of 1.4.7a. + +2006-09-25 Eric Blake <ebb9@byu.net> + + Release 1.4.7: + * configure.ac (AC_INIT): Bump version number. + * NEWS: Describe changes since 1.4.6. + +2006-09-21 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Invoking m4): Add clarification on option + processing behavior. + * THANKS: Update. + Reported by Mikhail Teterin. + + * bootstrap: Add --force option, based on idea from coreutils. + * README: Document that ./bootstrap and autoreconf are for + developers, and not lightly done in tarballs. + +2006-09-20 Eric Blake <ebb9@byu.net> + + * src/m4.c (usage, OPTSTRING, main): Rename -e to -i, and give + deprecation warning on -e. + * doc/m4.texinfo (Invoking m4, Extensions): Document this. + * NEWS: Document this. + +2006-09-19 Eric Blake <ebb9@byu.net> + + * src/m4.c (usage, long_options, main, DEBUGFILE_OPTION): Rename + -o/--error-output to --debugfile, and deprecate the former. This + will allow a future release to be more consistent with other GNU + tools, with -o/--output affecting stdout, not debug. + * doc/m4.texinfo (Invoking m4, Debug Output): Document this. + * NEWS: Document this. + +2006-09-14 Eric Blake <ebb9@byu.net> + + * src/m4.c (main): Warn on deprecated options -B, -S, -T, -N, + --diversions. `m4 --help --version' now displays help, not + version. + (interactive, frozen_file_to_read, frozen_file_to_write): Move to + smaller scope. + (show_help, show_version): No longer needed. + (long_options, DIVERSIONS_OPTION): Backport patch from head to + distinguish between -N and --diversions in warning. + * doc/m4.texinfo (Invoking m4): Document this. + * NEWS: Likewise. + +2006-09-11 Eric Blake <ebb9@byu.net> + + * src/Makefile.am (m4_LDADD): Add any gnulib dependent libraries. + * src/debug.c (debug_flush_files) [UNIX]: Flush stdin if it is + seekable. + (debug_set_file): Use STDOUT_FILENO. + * src/builtin.c (m4_m4exit): Flush stdin before exiting, to comply + with POSIX in regards to unread input. + * NEWS: Document this fix. + * doc/m4.texinfo (Syscmd, Esyscmd, M4exit): Likewise. + +2006-09-07 Eric Blake <ebb9@byu.net> + + * m4/gnulib-cache.m4: Update to newer gnulib-tool. + * src/m4.h (push_file): Change prototype. + * src/input.c (push_file, peek_input, next_char_1): Only call getc + once at EOF, to avoid double ^D on terminal stdin; regression from + 2006-09-04. + (push_file, pop_file): Allow reading stdin twice. + * src/m4.c (main): Likewise. + * src/builtin.c (include): Update caller. + * NEWS: Document this change. + * doc/m4.texinfo (Invoking m4, Incompatibilities): Likewise. + (Syscmd): Add a test that failed before this patch. + +2006-09-07 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> + + * checks/check-them: Quote $pwd. + +2006-09-05 Eric Blake <ebb9@byu.net> + + * src/builtin.c (define_macro): Warn on invalid macro name. + * NEWS: Document this change. + * doc/m4.texinfo: Fix typos. + (Invoking m4, Macro Arguments, Pseudo Arguments, Defn, Indir) + (Ifelse): Backport some improvements from head. + +2006-09-04 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Changeword): Skip test on mingw, where the + native echo is braindead. + * checks/check-them (strip_needed): Ignore \r in output. Now the + testsuite will pass when cross-compiling from cygwin to mingw. + + * src/input.c (peek_input): Fix regression in handling macro + without arguments as last token in file; debian bug 385720. + (next_token): Always consume an input character. + Reported by Andreas Schultz. + * configure.ac (AC_INIT): Bump version number. + * NEWS: Document this fix. + * doc/m4.texinfo (History): Mention next version. + (Changeword): Add example that exposes this bug. + * THANKS: Update. + +2006-08-25 Eric Blake <ebb9@byu.net> + + Release 1.4.6: + * configure.ac (AC_INIT): Bump version number. + * NEWS: Describe changes since 1.4.5. + + * Makefile.maint (web-manual): Give up on VPATH build during + distribution. But distributions are made so infrequently that + this is not too much of a hardship. + * Makefile.am (MAINTAINERCLEANFILES): Avoid error if lib/CVS/ + exists. + +2006-08-24 Eric Blake <ebb9@byu.net> + + * src/builtin.c (m4_index, m4_substr, m4_translit): Similar to + Solaris, produce output on just one argument. + (m4_regexp, m4_patsubst): For consistency, do likewise. + (m4_patsubst): Allow zero-length match at end of string. + * doc/m4.texinfo (Sysval): Fix overfull hbox. + (Bugs, Macro Arguments): Minor fixes. + (Other tokens): Rearrange node order. + (Index macro, Substr, Translit, Regexp, Patsubst): Add tests. + * NEWS: Document these fixes. + +2006-08-22 Eric Blake <ebb9@byu.net> + + * src/input.c (pop_input): Avoid empty filename with -di option. + * src/debug.c (debug_message_prefix): Put space before message. + + * m4/gnulib-cache.m4: We don't explicitly use alloca module. + + * m4/gnulib-cache.m4: Augment with gnulib-tool --import gnupload. + * Makefile.maint (fetch): Simplify, now that we can use gnupload. + + * checks/check-them: State why a test is skipped. + * doc/m4.texinfo (Changeword, Sysval, Maketemp): Likewise. + + * ChangeLog: Add copyright. + * AUTHORS: Likewise. + * BACKLOG: Likewise. + * README: Likewise. + * THANKS: Likewise. + * TODO: Likewise. + * examples/COPYING: New file, add copyright for all the examples. + * checks/get-them: Put copyright on testsuite files. + +2006-08-18 Eric Blake <ebb9@byu.net> + + Don't let unrelated child processes see too many files. + * m4/gnulib-cache.m4: Augment with gnulib-tool --import cloexec. + * src/builtin.c (m4_esyscmd, m4_regexp, m4_patsubst): Fix + spelling in error message. + * src/debug.c [!__STDC__]: Assume C89, and nuke old varargs.h. + (debug_set_output): Close debug file on exec. + * src/m4.h (includes): Add cloexec.h. + * src/output.c (make_room_for): Close diversions on exec. + * src/path.c (path_search): Close include files on exec. + * NEWS: Document this. + + Regular expressions were leaking memory. + * src/builtin.c (init_pattern_buffer, free_pattern_buffer): New + helper methods. + (m4_regexp, m4_patsubst): Avoid memory leak. + * src/input.c (init_pattern_buffer) [ENABLE_CHANGEWORD]: Make + static. + (set_word_regexp) [ENABLE_CHANGEWORD]: Avoid memory leak. Change + from O(n^2) to O(n) for calculating word_start. + (next_token, peek_token) [ENABLE_CHANGEWORD]: Treat word_start as + O(1) bitmap, not O(n) search string. + * NEWS: Document this fix. + +2006-08-17 Eric Blake <ebb9@byu.net> + + * NEWS: Document previous checkin. + + * src/builtin.c (substitute): Avoid core dump when accessing + beyond bound of regular expression. + Reported by Karl Nelson. + * doc/m4.texinfo (Regexp): Add example that causes core dump on + some architectures prior to this patch. + * THANKS: Updated. + +2006-08-16 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Invoking m4, Debug Output): Fix wording to be + clear that dumpdef does not always go to stderr. + + * src/builtin.c (m4_errprint): Flush buffers before printing to + stderr. + * THANKS: Updated. + +2006-08-15 Eric Blake <ebb9@byu.net> + + * src/builtin.c (m4_m4wrap, m4_errprint, m4_shift): Make blind, + per debian bug 96075. + * doc/m4.texinfo (Loops, M4wrap, Errprint): Document this change. + (Changeword): Don't use shift as an example of a swallowed word. + (Divert): Discuss fact that divert is an English word. + Reported by Richard A Nelson. + +2006-08-14 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Invoking m4): Minor fixes. + +2006-08-12 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Arguments): Hint at better exch macro. + (Answers): Provide a better definition. + +2006-08-09 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Incompatibilities): Document that m4 does not + yet understand locales. + * NEWS: Fix wording of a few items. + +2006-08-08 Eric Blake <ebb9@byu.net> + + Avoid printing `NONE:0:' in error messages. + * src/m4.h (m4_error_at_line): New function. + * src/m4.c (m4_error_at_line): Implement. + * src/input.c (skip_line, input_init, next_token): Use "", not + "NONE", for no file, since NONE can be a real file name. + * src/macro.c (expand_argument): Likewise. + * src/debug.c (debug_message_prefix, trace_header): Check for + current file. + * doc/m4.texinfo (Dnl, M4wrap): Adjust accordingly. + (Location): Document that synclines and internal message format + are not impacted by redefining these macros. + (M4exit): Hint at bug in fatal_error. + (Answers): Provide workaround to match m4 output. + + * m4/gnulib-cache.m4: Augment with gnulib-tool --import verror. + * src/m4.h (m4_error): New function. + (M4ERROR, M4ERROR_AT_LINE): Reimplement without hacking around + error module deficiencies. + (reference_error, suppress_line): No longer needed. + * src/m4.c (m4_error): Implement. + (main): No longer need to install error callback. + +2006-08-04 Eric Blake <ebb9@byu.net> + + * src/m4.h (program_name): Declare. + (suppress_line): New variable. + (M4ERROR_AT_LINE): New macro. + * src/m4.c (reference_error, main): Follow GNU Coding Standards + for error message format. + * src/input.c (skip_line, next_token): Use M4ERROR_AT_LINE. + * src/macro.c (expand_argument): Likewise. + * checks/check-them (examples): Adjust to new message format. + * src/builtin.c (m4___program__): New builtin. + * doc/m4.texinfo (Location): Split from Errprint into new node, + and document __program__. + (Builtin, Ifdef, Ifelse, Dumpdef, Trace, Debug Output, Dnl) + (Include, Regexp, Patsubst, Incr, Eval): Adjust error message + format. + (Extensions): Document __program__. + * NEWS: Document this change. + +2006-08-03 Eric Blake <ebb9@byu.net> + + Don't confuse leading `(' in comment or quote with start of + argument collection. + * src/m4.h (enum token_type): Add TOKEN_OPEN, TOKEN_COMMA, + TOKEN_CLOSE. + (peek_input): Make private to input.c. + (peek_token): New prototype. + * src/input.c (default_word_regexp): Reduce ifdefs. + (peek_input): Make static. + (next_token): Return new token types. + (match_input, MATCH): Add argument consume, which controls + whether match should be pushed back. + (peek_token): New function. + (token_type_string) [DEBUG_INPUT]: New function. + * src/macro.c (expand_token, expand_argument, collect_arguments): + Handle new token types. + * doc/m4.texinfo (Changequote, Changecom): Document this. + * NEWS: Document this. + + * src/stackovf.c (setup_stackovf_trap): Free memory on failure. + + * src/stackovf.c (setup_stackovf_trap): Gracefully avoid stack + overflow detection when sigstack exists but is not implemented. + Fixes debian bug 154053. + * THANKS: Updated. + Reported by David Perlin. + +2006-08-02 Eric Blake <ebb9@byu.net> + + * src/input.c (MATCH): Fix EOF detection on multi-byte comment + close. + +2006-08-01 Eric Blake <ebb9@byu.net> + + * src/input.c (skip_line, next_token): Remember current file in + case input file ends abruptly. Addresses debian bug 175365. + (pop_input): Defer freeing storage that holds previous file + name... + (pop_wrapup): to here, after error message is issued. + * src/macro.c (expand_argument): Remember current file in case + input file ends abruptly. + * doc/m4.texinfo (Macro Arguments, Dnl, Changequote, Changecom) + (M4wrap): Adjust testsuite accordingly. + (Errprint): Document line number limitation of m4wrap. + * NEWS: Document this fix. + * THANKS: Update. + +2006-07-31 Eric Blake <ebb9@byu.net> + + * src/input.c (peek_input, next_char, match_input): Be eight-bit + clean; fixes debian bug 311378. + * doc/m4.texinfo (Syntax): Describe eight-bit handling. + (Changequote, Changecom): Add examples to test this. + * NEWS: Document this fix. + * THANKS: Update. + Reported by Steven Augart. + + * doc/m4.texinfo: Whitespace fix. + * checks/get-them: Avoid exceeding 14-char file name limit. + * THANKS: Update. + +2006-07-30 Eric Blake <ebb9@byu.net> + + * src/path.c (path_search): Detect allocation failure. + + Use native free when it is good enough. + * m4/gnulib-cache.m4: Augment with gnulib-tool --import free. + * src/builtin.c (define_user_macro, m4_regexp, m4_patsubst): + Adjust calls. + * src/symtab.c (free_symbol): Likewise. + * src/m4.c (xfree, main): Likewise. + * src/m4.h (obstack_chunk_free): Likewise. + * src/path.c (path_search): Likewise. + * src/input.c (pop_wrapup, set_quotes, set_comment): Likewise. + + * doc/m4.texinfo (Errprint): Add example for last patch. + * checks/check-them: Account for VPATH in latest example. + +2006-07-29 Eric Blake <ebb9@byu.net> + + * src/path.c (path_search): Add result parameter, so that + -I can be accounted for. Debian bug 53685. + * src/m4.h (path_search): Update prototype. + * src/m4.c (main): Adjust callers. + * src/freeze.c (reload_frozen_state): Likewise. + * src/builtin.c (include, m4_undivert): Likewise. + * NEWS: Document this change. + Reported by Nicolas Lichtmaier. + +2006-07-28 Eric Blake <ebb9@byu.net> + + * Makefile.am (MAINTAINERCLEANFILES): Fix typo that tripped up + several non-GNU makes. + * src/stackovf.c (setup_stackovf_trap): Missed _ from yesterday. + * src/m4.h: Likewise. + * src/input.c (push_wrapup): Avoid compiler warning with Solaris + /usr/ccs/bin/ucbcc. + +2006-07-27 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo: Use @acronym{GNU} throughout. + (History): Update for 1.4.6. + + * src/m4.h (_): Remove K&R cruft. + * src/builtin.c: Likewise. + * src/debug.c: Likewise. + * src/eval.c: Likewise. + * src/macro.c: Likewise. + * src/stackovf.c: Likewise. + + * doc/Makefile.am (m4.1): Improve man page. + * src/m4.c (usage): Improve --help output, including adding the + bug reporting address. + (main): Follow GNU Coding Standards for --version output. + +2006-07-26 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo: Use begin-quote, end-quote, begin-comment, and + end-comment consistently, to match POSIX. + + * doc/m4.texinfo (Macro Arguments, Changequote, Changecom) + (Dnl, M4wrap, Include): Document EOF issues, and add examples. + (Incompatibilities): Document incompatibility of changecom + vs. macro names, and of EOF in include. + * src/input.c (next_token): Reject unterminated comments at EOF. + (skip_line): Warn on unterminated dnl at EOF. + * NEWS: Document these changes. + +2006-07-25 Eric Blake <ebb9@byu.net> + + * m4/gnulib-cache.m4: Update to reflect gnulib's split of + stdio-safer into fopen-safer and tmpfile-safer. + * src/m4.c: Remove redundant include. + +2006-07-24 Eric Blake <ebb9@byu.net> + + Fix bugs related to stream handling. + * m4/gnulib-cache.m4: Augment with gnulib-tool --import + unlocked-io stdio-safer stdlib-safer close-stream. + * configure.ac (AC_CHECK_FUNCS_ONCE): Assume tmpfile; it can be + provided by gnulib if needed. + * src/output.c [! HAVE_TMPFILE]: Likewise. + * src/m4.h (includes): Replace unistd, stdio, and stdlib with + their safer counterparts. + (retcode): New global variable. + * src/input.c (pop_input): Check for read failure. + * src/freeze.c (reload_frozen_state): Likewise. + (produce_frozen_state): Check for write failure. + * src/debug.c (debug_set_file): Likewise. + * src/m4.c (usage, main): Likewise. + (retcode): Make global. + * src/builtin.c (m4_m4exit): Likewise. Ensure that the exit + status is non-zero except when everything succeeds. + * doc/m4.texinfo (M4exit): Document these changes. + (Incompatibilities): Remove documentation of bug now fixed. + * NEWS: Document these fixes. + +2006-07-22 Eric Blake <ebb9@byu.net> + + * src/format.c (format): Avoid compiler warning that str may be + used uninitialized. + +2006-07-21 Eric Blake <ebb9@byu.net> + + * src/m4.h [UNIX]: Add more platforms that are close enough to + categorize as UNIX, but which don't predefine __unix__. + Reported by Nelson H. F. Beebe. + +2006-07-20 Eric Blake <ebb9@byu.net> + + * m4/gnulib-cache.m4: gnulib-tool has changed again. Regenerate + to explicitly ask for --assume-autoconf=2.60. + +2006-07-19 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Sysval): Avoid kill -1, since ksh traps SIGHUP + and exits normally with 129. + Reported by Nelson H. F. Beebe. + * THANKS: Update. + + * src/m4.h (EXIT_MISMATCH): Define. + * src/freeze.c (reload_frozen_state): Detect version mismatch, by + exiting with status 63. + * src/m4.c (usage): Document this. + * doc/m4.texinfo (Invoking m4, Using frozen files): Likewise. + * NEWS: Likewise. + + * doc/m4.texinfo (copying): Relax restriction on front-cover and + back-cover texts. + +2006-07-17 Eric Blake <ebb9@byu.net> + + * src/format.c (format): Support F, g, and G specifiers. + * doc/m4.texinfo (Format): Document this. + * NEWS: Document this addition. + + * doc/m4.texinfo (Builtin): Delete redundant text. + + * configure.ac (AC_INIT): Bump version number. + * src/builtin.c (substitute): Bah. Fix buffer overrun. + * NEWS: Document this fix. + +2006-07-15 Eric Blake <ebb9@byu.net> + + Release 1.4.5: + * configure.ac (AC_INIT): Bump version number. + * NEWS: Describe changes since 1.4.4. + + * src/m4.c (usage): Document exit status. + * doc/m4.texinfo: Use `exit status', not `exit code'. + (Invoking m4): Document exit status. + + * bootstrap: Backport --help, --version from head. + (func_update): New function, for easily grabbing up-to-date files + from gnulib. + * Makefile.maint (web-manual): Fix for VPATH builds. + +2006-07-14 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo: Global cleanup. Avoid @code{...}'d, as it + looks bad in info. Use @deffn rather than @example for + describing prototypes. Fix awkward wording and grammar. + + * src/builtin.c (substitute): Warn on bad escape sequences. + Ignore trailing backslash. + * doc/m4.texinfo (Regexp): Add documentation for this. + * NEWS: Document this change. + + * src/builtin.c (m4_format, m4_indir): Warn on too few arguments. + * doc/m4.texinfo (Defn, Builtin, Debug Levels, Debug Output): Add + more examples. + (Dnl): Update example to show side effects. + * checks/get-them: Generate three digit test names. + * checks/Makefile.in (CHECKS): Accomodate 100+ tests. + +2006-07-13 Eric Blake <ebb9@byu.net> + + * src/input.c (input_init): Simplify. + (set_word_regexp): Treat empty string as default, since empty + regexp would disable word parsing. + * src/m4.c (user_word_regexp): Default to empty string. + * src/builtin.c (builtin_tab): Make changeword blind. + * doc/m4.texinfo (Changeword): Document this. + * NEWS: Document this. + * TODO: Knock off completed items. + + * src/builtin.c (m4_undefine, m4_popdef): Visit all arguments, not + just the first. + * doc/m4.texinfo (Undefine, Pushdef): Test this. + * NEWS: Document this change. + + * src/builtin.c (numeric_arg): Treat empty string as 0, with a + warning. Detect quoted leading space and overflow as warnings. + (m4_eval): Treat empty radix as 10, and allow output in radix 1. + Treat width as minimum number of digits, as required by POSIX. + (m4_ifdef, m4_divert, m4_m4exit, m4_translit): Ignore extra + arguments. + (m4_substr): Likewise. Silently treat empty start as 0. + (m4_undivert): Treat ` 1a' as file, not diversion 1. + * src/eval.c (eval_lex): Parse radix 1 numbers. + * doc/m4.texinfo (Invoking m4): Fix wording; there is more than + one type of warning. + (Manual): Document behavior of numeric parsing of empty string. + (Divert, Incr): Document error handling. + (Eval): Document radices better. + (Incompatibilities): Document translit incompatibility. + * NEWS: Document these changes. + + * Makefile.maint (fetch): Get gendocs from gnulib, not texinfo. + (web-manual): Simplify. + * m4/gnulib-cache.m4: Augment with gnulib-tool --import gendocs. + * Makefile.am (EXTRA_DIST): Distribute gendocs.sh. + (MAINTAINERCLEANFILES): Clean it as well. + * doc/Makefile.am (EXTRA_DIST): Distribute gendocs_template. + (MAINTAINERCLEANFILES): Clean it as well. + +2006-07-12 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Extensions): Document how to overcome + implementation difference in > 9 positional parameters. + + * src/m4.c (usage): Sort within sections. + (nesting_limit): Raise default from 250 to 1024. + * doc/m4.texinfo: Use file name, not filename, per GNU coding + standard. Use @option where appropriate. + (Invoking m4): Sort to match --help output. + (Debug Levels): Sort. + (Frozen files): Sort and break into two nodes. + + * src/m4.c (nesting_limit): Raise default from 250 to 1024. + * NEWS: Document raised -L limit. + +2006-07-11 Eric Blake <ebb9@byu.net> + + * Makefile.am (DISTCHECK_CONFIGURE_FLAGS): New macro, to + stress-test changeword before a release. + * doc/m4.texinfo: More doc cleanups. + (Copying This Manual): New node; actually include the FDL in the + documentation. + * doc/Makefile.am (m4_TEXINFOS): Mention dependence on fdl.texi. + * m4/gnulib-cache.m4: Augment with gnulib-tool --import fdl. + * NEWS: Mention documentation improvements. + + * src/m4.h (OS2): New platform macro. + * src/builtin.c (predefined_tab) [OS2]: Use it to give OS/2 a + platform macro. + * doc/m4.texinfo (Platform macros): Document it. + (Sysval): Remove non-portable test of system(""). + * NEWS: Document this change. + Reported by Andreas Buening. + +2006-07-09 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Undivert): Fix typo in last commit. + * src/m4.c (usage): Document M4PATH. + * src/path.c (path_search): Reject empty string. + * src/output.c (insert_diversion): Ignore diversion 0. + * src/builtin.c (m4_undivert): Ignore empty string. + * NEWS: Document this fix. + +2006-07-08 Eric Blake <ebb9@byu.net> + + * checks/get-them: Make filtering easier. + * checks/check-them: Filter non-input lines, so line counts are + more realistic in the documentation, and so changeword tests work + even when dnl is disabled. + * doc/m4.texinfo: Adjust example line numbers. Clean up + front-matter, following autoconf's example. + (Changeword): Enable tests, skipping if changeword not supported. + (Define, Defn, Ifelse): Backport more examples from head. + (Input processing, Answers): New nodes, backported from head. + (Include): Expand test to cover empty filename. + (Undivert): Add test of undivert(0). + +2006-07-07 Ralf Wildenhues <Ralf.Wildenhues@gmx.de> + + * doc/m4.texinfo: Fix spelling errors. + +2006-07-07 Eric Blake <ebb9@byu.net> + + * THANKS: Update. + + * doc/Makefile.am (m4.1): No need to go through a temporary file; + this also ensures timestamps are updated. + * src/m4.h (includes): Require config.h. Assume string.h, + stdlib.h, errno. Include error.h, exit.h, and xalloc.h rather + than prototyping ourselves. + (builtin_func): Add parameter type-checking. + (voidstar): Delete, now that we assume C89. + * src/builtin.c, src/m4.c, src/macro.c, src/symtab.c: All users of + voidstar changed. + * src/m4.c (xfree) [WITH_DMALLOC]: Avoid clash with dmalloc's + xfree. + +2006-07-06 Eric Blake <ebb9@byu.net> + + * m4/gnulib-cache.m4: Augment with gnulib-tool --import + binary-io. + * src/m4.h (includes): Add binary-io.h for O_BINARY. + * src/freeze.c (produce_frozen_state): Use O_BINARY to remove + #ifdef. Fixes patch from 2005-02-03 for cygwin. + * NEWS: Mention this fix. + + * configure.ac (FUNC_SYSTEM_BROKEN): New check for OS/2 bug. + * src/builtin.c (m4_syscmd): Work around OS/2 bug. + + * Makefile.am (SUBDIRS): Build . before src, so that autoheader + runs first when needed. + * doc/Makefile.am (m4.1): Backport rule from CVS head: build m4.1 + once in srcdir rather than multiple times in VPATH builds. + +2006-07-03 Eric Blake <ebb9@byu.net> + + * checks/check-them: Use portable = in test. + * src/Makefile.am (AM_CPPFLAGS): Omit space between -I and + directory, as required by Solaris cc. Include built headers, as + required by Solaris make in VPATH build. + * checks/Makefile.in: Use $(srcdir) where needed. + (CHECKS): Factor $(srcdir) into macro. + (DISTFILES): Likewise. Automake takes care of distributing + Makefile.in. + (dist): Simplify. + (Makefile): Use modern syntax of config.status. + * doc/m4.texinfo (Loops, Include, Undivert, Incompatibilities): + Avoid overfull and underfull hboxes in dvi. + + Fix 'make check' in VPATH build. All files included by testsuite + now live in a single directory. Use forloop.m4 in testsuite. + * checks/incl.m4, checks/foo, checks/wrapfifo.m4: Move from + here... + * examples/incl.m4, examples/foo, examples/wrapfifo.m4: ...to + here. + * checks/Makefile.in (DISTFILES): Don't distribute moved files. + * examples/Makefile.am (EXTRA_DIST): Distribute new files. + * checks/check-them: Avoid s/// when filename is in pattern. + * examples/forloop.m4: Fix to match documentation. + * doc/m4.texinfo (Include, Undivert, Incompatibilities): Reflect + new locations. + (Loops, Format): Actually use forloop.m4 in tests. + +2006-07-02 Eric Blake <ebb9@byu.net> + + * checks/Makefile.in (exec_prefix, prefix): New macros, so that + $(bindir) works in installcheck. + (check, installcheck): No longer change directory, so that + distcheck works with a read-only builddir. + * checks/check-them: Work when pwd is no longer builddir. + +2006-07-01 Eric Blake <ebb9@byu.net> + + * GNUmakefile: New file, borrowed from coreutils. + * Makefile.am (EXTRA_DIST): Distribute GNUmakefile. + * Makefile.maint (Makefile): Delete this rule, now that + GNUmakefile includes Makefile. + +2006-06-30 Eric Blake <ebb9@byu.net> + + For compatibility with other m4 implementations, sysval returns + signal<<8 rather than 0 if syscmd is terminated by a signal. + * configure.ac (AC_CHECK_HEADERS_ONCE): Check for sys/wait.h. + * src/builtin.c (include): Include sys/wait.h when stdlib.h does + not provide wait macros. + (WTERMSIG, WIFSIGNALED, WIFEXITED): More fallback macros. + (M4SYSVAL_EXITBITS, M4SYSVAL_TERMSIGBITS): New helper macros. + (m4_esyscmd): Set sysval to -1 on failure. + (m4_sysval): Print 127 on failure, and accomodate signals if they + are detectable. + * NEWS: Document this change. + * doc/m4.texinfo (Platform macros, Esyscmd, Sysval): Fix typos in + last commit. + * checks/check-them: Likewise. + * src/debug.c (debug_set_file): Work around mingw fstat bug. + + * src/m4.h (UNIX, W32_NATIVE): Improve platform detection macros. + * src/freeze.c (produce_frozen_state): Use new spelling of + platform macro. + * src/builtin.c (predefined_tab): Add __windows__ on non-unix + platforms. + (m4_syscmd, m4_esyscmd): The empty command is successful. + * doc/m4.texinfo (Shell commands): Rename from UNIX commands. + Document platform-dependence of system(). + (Syscmd): Add example. + (Esyscmd): Make example more robust, and actually demonstrate + rescanning. + (Sysval): Expand test to cover esyscmd code path, and to check + that empty command is successful. Add conditional check for + signal behavior. + (Other Incompatibilities): Move platform macros from here... + (Platform macros): ...to this new node. Add windows macro. + Check that exactly one platform macro is provided. + * checks/check-them: Improve trap cleanup. Tolerate dirname and + .exe in error messages. Allow for skipping checks. + * configure.ac (HAVE_EFGCVT): Kill dead configure check. + * NEWS: Document platform macros. + +2006-06-29 Eric Blake <ebb9@byu.net> + + Fix buffer overrun bug. + * m4/gnulib-cache.m4: Augment with gnulib-tool --import + xvasprintf. + * src/format.c [HAVE_EFGCVT]: Delete this code, and use *printf + variant instead, since [efg]cvt are obsolete and our use of them + was buggy (savannah sr #104303). + (format): Fix buffer overflow by using xasprintf. + * doc/m4.texinfo (Format): Expand format test to catch both bugs. + * NEWS: Document this fix. + + * configure.ac (AC_CANONICAL_HOST, AC_CANONICAL_BUILD): Allow + cross-compilation. + (AC_CACHE_CHECK): Cache search for ecvt. + +2006-06-27 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Eval): Document 32-bit signed limitations + required by POSIX, and add example that exposed core dump on x86 + architectures. + (Incompatibilities): Document incompatibility in eval precedence. + * src/eval.c (shift_term): Explicitly mask, to avoid undefined + behavior. + (mult_term): Explicitly check for -1, to avoid SIGFPE on x86. + * NEWS: Document this change. + + * doc/m4.texinfo: Use @noindent consistently. + (Quoting Arguments): Document that unquoted parentheses group + arguments. + (Pseudo Arguments): Expand tests to show this. + (Incompatibilities): Contrast traditional behavior of + changequote. + +2006-06-24 Eric Blake <ebb9@byu.net> + + * configure.ac (AC_PREREQ): Autoconf 2.60 is now released. + (AC_CHECK_HEADERS_ONCE): Use this new feature. + (AC_CHECK_FUNCS_ONCE): Likewise. + +2006-06-23 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo: Quoting cleanup throughout - follow + autoconf-recommended style of one level of quote per parenthesis + in the normal case. Adjust error messages to match GNU coding + standards (and to allow 'make check' to pass again). + (Quoted strings, Inhibiting Invocation): Turn more examples into + tests. + (Comments): Resolve FIXME by adding example. + (Define): Add example about underquoting. + (Defn): Add example about use of $0. + (Indir, Format): Resolve FIXME done in last commit. + (Ifelse): Add example about creating blind macro. + (Debugging): Fix grammar. + (Dnl): Add example about dnl with arguments. + (M4wrap): Be explicit that LIFO order is non compliant, and will + change in m4 2.0. + (Undivert): Resolve FIXME by adding example. + (Frozen files): Document that m4wrap and sysval will not work + consistently until m4 2.0. + (Incompatibilities): Document another POSIX compliance bug, this + time with changequote. Document a traditional incompatibility + with partial input spanning file boundaries. + + Make error messages more consistent with GNU coding standards - + start with lower case, and don't end sentence with punctuation. + * src/debug.c (trace_pre): Update message wording. + * src/eval.c (evaluate, cmp_term, shift_term, mult_term): + Likewise. + * src/freeze.c (produce_frozen_state, issue_expect_message), + (reload_frozen_state): Likewise. + * src/input.c (push_string_init, pop_init, init_macro_token), + (peek_input, next_char_1, set_word_regexp, next_token): Likewise. + * src/m4.c (stackovf_handler, main): Likewise. + * src/macro.c (expand_token, expand_argument, call_macro), + (expand_macro): Likewise. + * src/output.c (make_room_for, output_text, insert_file), + (freeze_diversions): Likewise. + * src/symtab.c (symtab_init, lookup_symbol): Likewise. + + * src/builtin.c (builtin_tab): Make format and indir blind. + (substitute): Prefer "Warning:" vs. "ERROR:" in messages. + * NEWS: Mention the change to builtins. + +2006-06-22 Eric Blake <ebb9@byu.net> + + Robustify frozen file format. + * src/freeze.c (reload_frozen_state): Add GET_DIRECTIVE helper + macro. Require V first, and only accept it once. For F, use + placeholder if builtin is not found, rather than warning. + * src/m4.h (m4_placeholder): New prototype. + * src/builtin.c: Unify error message style. + (m4_placeholder): New function, warn if invoked. + (builtin_tab): Add m4_placeholder. + (m4_defn): Warn if placeholder is encountered. + (find_builtin_by_addr): Handle placeholder. + (find_builtin_by_name): Return placeholder on failure. + (m4_builtin): Treat placeholder as undefined. + * doc/m4.texinfo (Frozen files): Document changes in V and F. + * NEWS: Document this change. + Reported by Bruno Haible. + + * doc/m4.texinfo: Whitespace cleanup. TABs are evil in texinfo. + (tabchar): New macro, so that 'make check' still works. + (Invoking m4): Document that ignored compatibility options -B, -S, + and -T each consume an argument. + * checks/get-them: Honor @tabchar{}. + + Avoid compiler warnings during -DDEBUG. + * src/m4.h (M4_GNUC_ATTRIBUTE, M4_GNUC_UNUSED): New macros. + [DEBUG]: Also imply DEBUG_OUTPUT and DEBUG_STKOVF. + * src/input.c (print_token) [DEBUG_INPUT]: Use correct format. + (lex_debug) [DEBUG_INPUT]: Fix to compile. Mark unused. + (next_token) [DEBUG_INPUT]: Print before returning. + * src/path.c (include_dump) [DEBUG_INCL]: Mark unused. + * src/symtab.c (symtab_debug) [DEBUG_SYM]: Mark unused. + + Avoid mkstemp bugs on various platforms. + * m4/gnulib-cache.c: Augment with gnulib-tool --import mkstemp. + * src/output.c [! HAVE_MKSTEMP]: Delete. + * configure.ac (AC_CHECK_FUNCS): Don't check for mkstemp. + * src/m4.h (mkstemp) [! HAVE_MKSTEMP]: Prototype, if needed. + * NEWS: Document this. + + * Makefile.am (EXTRA_DIST): Distribute gnulib-cache.m4. + Reported by Bruno Haible. + +2006-06-21 Eric Blake <ebb9@byu.net> + + Avoid obsolete sigstack when POSIX sigaltstack is available. + * src/m4.c: Blindly assume signal.h, since stackovf.c and gnulib + do likewise. + * configure.ac (AC_CHECK_HEADERS): Likewise. + (AC_CHECK_TYPES): New check for siginfo_t, since siginfo.h is + obsolete and most hosts now have it in signal.h. + (AC_CHECK_MEMBERS): New check for sigaction.sa_sigaction. + (AC_CACHE_CHECK): Cache decision to use stackovf. + (AC_EGREP_HEADER): Switch to AC_CHECK_TYPES. + * src/stackovf.c (DEBUG_STACKOVF): Remove unused define. + (SA_RESETHAND, SA_SIGINFO): Provide fallback definitions, to + simplify later code. + (PARAM_STACKOVF, PARAM_NOSTACKOVF): Move further away from NULL, + in case of dereferencing a member of a NULL pointer. + (sigsegv_handler) [HAVE_STRUCT_SIGACTION_SA_SIGACTION]: Define a + POSIX handler. + (setup_stackovf_trap): Use NULL instead of 0 for pointers, use + EXIT_FAILURE in error, indent preprocessor directives. + [HAVE_SIGALTSTACK && HAVE_SIGINFO_T]: Depend on siginfo_t, not + siginfo.h. + [HAVE_SIGACTION && defined SA_ONSTACK]: Prefer POSIX handler. + Reported by Santiago Vila. + +2006-06-19 Eric Blake <ebb9@byu.net> + + * THANKS: Update. + +2006-06-18 Andreas Buening <andreas.buening@nexgo.de> (tiny change) + + * checks/Makefile.in (PATH_SEPARATOR): New macro. + (check, installcheck): Use it, for OS/2. + +2006-06-18 Eric Blake <ebb9@byu.net> + + Consistently use "GNU M4" as package name, "m4" as executable + name. + * NEWS: Document previous fix. + * THANKS: Update. + * README: Fix grammar. Document that --enable-changeword is on + its last leg. + * doc/m4.texinfo (Top, Changeword): Likewise. + (Sysval): Enhance this test. + (History): Backport this section from CVS head, and update. + +2006-06-18 Bruno Haible <bruno@clisp.org> (tiny change) + Eric Blake <ebb9@byu.net> + + * src/builtin.c (WEXITSTATUS): Provide fallback definition. + (m4_esyscmd): Set sysval to 0xffff, to accomodate both + big-endian and little-endian wait status definitions. + (m4_sysval): Use WEXITSTATUS. + Reported by Andreas Buening. + +2006-06-18 Eric Blake <ebb9@byu.net> + + * configure.ac (AC_INIT): Bump version number. + * NEWS: Describe changes in 1.4.4c. + +2006-06-17 Eric Blake <ebb9@byu.net> + + Beta Release 1.4.4b: + * configure.ac (AC_INIT): Bump version number. + * NEWS: Describe changes since 1.4.4. + * Makefile.maint (cvs-news): Accomodate copyright line wrapping. + + * Makefile.am (MAINTAINERCLEANFILES): Clean files added by + bootstrap. + * checks/Makefile.in (maintainer-clean): Add missing target. + * COPYING: Remove generated file from CVS. + +2006-06-16 Eric Blake <ebb9@byu.net> + + * checks/Makefile.in (DISTFILES): Distribute wrapfifo.m4. + +2006-06-15 Eric Blake <ebb9@byu.net> + + * checks/wrapfifo.m4: New file. Use it... + * doc/m4.texinfo (Incompatibilities): here, in a new test case to + demonstrate how to get POSIX behavior of m4wrap prior to m4 2.0. + + * src/m4.h (to_uchar): New function. + * src/eval.c (eval_lex): Use it to avoid passing signed char to + isdigit, isalpha, isupper, islower, isspace, isalnum. + * src/builtin.c (expand_user_macro): Likewise. + * src/format.c (format): Likewise. + * src/macro.c (expand_argument): Likewise. + * NEWS: Document this security fix. + + Message cleanup. + * src/symtab.c (lookup_symbol): Use invalid, not illegal. + * src/freeze.c (reload_frozen_state): Fix typo in message. + (produce_frozen_state): Standardize on builtin, not built-in. + * src/builtin.c (numeric_arg, bad_argc): Likewise. + + * configure.ac (M4_EARLY, M4_INIT): Use gnulib. + (AC_PROG_RANLIB, AC_AIX, AC_MINIX, AC_CHECK_HEADERS), + (AC_FUNC_ALLOCA, AC_REPLACE_FUNCS): Avoid checks now done by + gnulib. + * Makefile.am (ACLOCAL_AMFLAGS): New entry, for gnulib. + * m4/gnulib-cache.m4: New file, from gnulib. + * bootstrap: Invoke gnulib-tool --update. + * src/m4.c (main): Cast away const. + * NEWS: Document that regex is updated. + * THANKS: Update. + +2006-06-08 Eric Blake <ebb9@byu.net> + + * configure.ac (changeword): Work even when changeword is not a + macro. + (AC_PROG_AWK, AC_PROG_INSTALL, AC_PROG_MAKE_SET, AC_HEADER_STDC): + Delete; now done by automake. + (AC_ISC_POSIX, AC_C_CONST): Delete; now obsolete. + +2006-06-07 Eric Blake <ebb9@byu.net> + + * lib/regex.c (bcmp_translate): Canonicalize type name. + * doc/Makefile.am (MAINTAINERCLEANFILES): Fix typo. + * configure.ac (changeword): Disable changeword for the creation + of configure, in case of bootstrapping with an m4 configured with + --enable-changeword. + + Distribute a rudimentary man page. + * Makefile.am (SUBDIRS): Move doc after src so that 'm4 --help' + can feed help2man. + * doc/Makefile.am (man_MANS, EXTRA_DIST, MAINTAINERDISTCLEAN), + (SUFFIXES, m4.1): New macros and rules to build m4.1. + +2006-06-06 Eric Blake <ebb9@byu.net> + + * lib/regex.c (re_match_2_internal, bcmp_translate): Avoid + compiler warnings at -O2. + * lib/getopt.c (_getopt_internal): Likewise. + + Cleanup of previous patches. + * src/input.c (struct input_block): Remove traced member. + (push_macro, init_macro_token): Don't pass trace status around. + * src/m4.h (struct token_data): Remove traced member. + (struct symbol, struct builtin): Reduce unused space. + (TOKEN_DATA_FUNC): Simplify. + (TOKEN_DATA_FUNC_TRACED): Remove unused macro. + (push_macro, define_builtin): Remove unused parameter. + * src/builtin.c (define_builtin, builtin_init, define_macro), + (m4_defn): Don't pass trace status around. + * src/macro.c (expand_argument): Likewise. + * src/freeze.c (reload_frozen_state): Likewise. + * src/symtab.c: Whitespace cleanup. + * NEWS: Clean up wording. + * doc/m4.texinfo (Undefine, Dumpdef, Trace): Cleanup wording; + ensure tests actually expose bugs prior to today's patches. + + Trace status of builtins is no longer inherited across + define(...,defn(...)). Fixes bug that autom4te had been working + around. + * src/builtin.c (define_builtin): Don't override trace status. + * doc/m4.texinfo (Trace): Add test for this. + * NEWS: Document this. + + When changing macro definitions inside the arguments to the macro, + consistently preserve the old definition that was in effect before + argument collection, similar to the C pre-processor. + Reported by John Brzustowski. + * NEWS: Document this change. + * doc/m4.texinfo (Macro Arguments, Undefine, Dumpdef): Document + this policy, and add tests that expose core dumps prior to this + patch. + * src/m4.h (struct symbol): New members to track when a symbol is + still in use after removal from the symbol table. + (SYMBOL_PENDING_EXPANSIONS, SYMBOL_DELETED): Define. + (free_symbol): Prototype. + * src/macro.c (expand_macro): Track pending expansions of a + symbol. On completion, if a symbol is deleted and no longer + pending, free its memory. + * src/symtab.c (free_symbol): Export. Don't free memory if symbol + is still in use. + (lookup_symbol) <SYMBOL_INSERT>: Create new entry when old entry + is still in use. + (lookup_symbol) <SYMBOL_DELETE, SYMBOL_POPDEF>: Mark entries still + in use as deleted and remove from the table without freeing + memory. + (symtab_print_list) [DEBUG_SYM]: More debug output. + + * src/symtab.c (hack_all_symbols): Allow certain modifications of + the symbol table during traversal. + * src/builtin.c (set_trace): Replace SYMBOL_DELETE with + SYMBOL_POPDEF, since only the latter is safe with + hack_all_symbols. + + Solve crash when passing "indir(`foo')" to "m4 -tfoo". + * src/symtab.c (lookup_symbol) <SYMBOL_DELETE, SYMBOL_POPDEF>: + Preserve placeholder when macro is being traced. + * src/builtin.c (m4_ifdef, m4_indir): A traced but undefined + symbol is not defined. + (set_trace): Remove placeholder when no longer traced. + (m4_traceon): On named traces, always reserve a slot in the + symbol table. + (m4_traceoff): Don't warn about untracing a nonexistent symbol. + * NEWS: Document new trace behavior. + * doc/m4.texinfo (Trace): Tracing by name now consistently works + no matter whether that macro is currently defined. + (Incompatibilities): Document differences between traditional and + GNU trace. + +2006-06-04 Paul Eggert <eggert@cs.ucla.edu> (tiny change) + Eric Blake <ebb9@byu.net> + + * src/m4.h (hash_table_size): Now size_t instead of int. + * src/m4.c (hash_table_size): Likewise. + (main): Adjust to this; use atol rather than atoi. + * src/symtab.c: Include <limits.h>, for CHAR_BIT. + (symtab_init, lookup_symbol, hack_all_symbols): + Use size_t for sizes and indexes, not int. + (symtab_print_list) [DEBUG_SYM]: Likewise. + (hash): Likewise. Don't case-fold in the hash function. + Shift by 7, not 3, for consistency with gnulib/lib/hash.c. + Don't assume hash word is 32 bits. + * NEWS: Document this change. + +2006-06-04 Eric Blake <ebb9@byu.net> + + * src/symtab.c (symtab_debug, symtab_print_list) [DEBUG_SYM]: Fix + to allow compilation, for use in debugger. + (profiles, current_mode) [DEBUG_SYM]: New variables. + (show_profile, profile_strcmp) [DEBUG_SYM]: New methods for + determining hash table performance. + +2006-05-31 Eric Blake <ebb9@byu.net> + John Brzustowski <jbrzusto@fastmail.fm> + + * src/input.c (input_stack): Delete; use current_input instead. + (wrapup_stack): Dynamically allocate, so that recursion is handled + properly. + (push_wrapup): Use current wrapup stack. + (pop_wrapup): Rotate wrapup stack to current, and create new + wrapup stack. + (input_init): Dynamically allocate stacks. + * NEWS: Update, now that recursive m4wrap can no longer cause + core dump. + +2006-05-31 Eric Blake <ebb9@byu.net> + + * lib/getopt.c: Fix copyright year. + * lib/obstack.c: Ditto. + * src/builtin.c: Ditto. + +2006-05-30 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (M4wrap): Add test to expose m4wrap bug. + Reported by John Brzustowski. + (Incompatibilities): Document known POSIX incompatibilities. + * THANKS: Update. + +2006-05-29 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo (Maketemp): Work even when running 'make check' + in read-only dir. + + Use automake. + * Makefile.am: New file. + * doc/Makefile.am: Ditto. + * examples/Makefile.am: Ditto. + * lib/Makefile.am: Ditto. + * src/Makefile.am: Ditto. + * acinclude.m4: New file, renamed from aclocal.m4. + * configure.ac (AM_INIT_AUTOMAKE): Invoke new macro. + (AC_ARG_PROGRAM): Now redundant. + (STACKOVF): Turn into automake conditional. + (AC_CONFIG_COMMANDS): stamp-h is a command, not a file. + * checks/Makefile.in: Converting this dir to automake was not + trivial; for now, just add missing targets demanded by top-level. + * INSTALL: Remove files that are now generated from CVS. + * Makefile.in: Ditto. + * aclocal.m4: Ditto. + * install-sh: Ditto. + * mkinstalldirs: Ditto. + * doc/Makefile.in: Ditto. + * doc/texinfo.tex: Ditto. + * examples/Makefile.in: Ditto. + * lib/Makefile.in: Ditto. + * src/Makefile.in: Ditto. + + * AUTHORS: Backport from CVS head, and update. + * doc/m4.texinfo (Changeword): Fix examples to match behavior. + +2006-05-27 Eric Blake <ebb9@byu.net> + + * lib/regex.c (regex_compile): Kill compiler warnings. + * lib/getopt.c: Likewise. + * lib/obstack.c: Likewise. + * src/builtin.c (builtin_init): Likewise. + * src/path.c (path_search): Likewise. + + * doc/m4.texinfo: Fix usage of a vs. an. + (Loops, Include, Cleardiv, Patsubst, Format, M4exit): Kill + overfull hbox warnings. + (Inhibiting Invocation, Divert, Maketemp, M4exit): Add new tests. + + * configure.ac: Update to autoconf 2.59. Forbid ^M4_. Fix + quoting. + * aclocal.m4 (fp_PROG_CC_STDC): Delete; now covered by autoconf. + (fp_C_PROTOTYPES): Delete, GNU Coding Standards state we can now + assume C89. + (M4_WITH_DMALLOC): Rename from fp_WITH_DMALLOC. Fix quoting. + * src/m4.h (_): PROTOTYPES is no longer provided, assume C89. + * src/Makefile.in: Delete remains of ansi2knr. + * src/ansi2knr.1: Delete. + * src/ansi2knr.c: Delete. + +2006-05-25 Eric Blake <ebb9@byu.net> + + * doc/m4.texinfo: Fix spelling errors. Use `invalid' instead of + `illegal'. + + * doc/m4.texinfo (Francois): No longer needed as a tex variable. + Reported by Karl Berry. + +2006-05-24 Eric Blake <ebb9@byu.net> + + * Makefile.in (html): New target. + * doc/Makefile.in (html, m4.html): Likewise. + (MAKEINFOHTML): New macro. + * doc/m4.texinfo (Francois) [ifnottex]: Use newer texinfo + rendering. + (Regexp) [ifhtml]: Make cross-reference to emacs manual an + absolute URL. + Reported by Bob Badour. + + * THANKS: Update. Move reporter's email addresses here, instead + of in ChangeLog. + +2006-05-11 Eric Blake <ebb9@byu.net> + + * THANKS: Update. + * doc/m4.texinfo (Changequote): Give testsuite exposure to bug + patched on 2005-12-04. + Reported by Ilya N. Golubev. + + * bootstrap: New file, so that generated files need not be stored + in CVS. + * Makefile.in (DISTFILES): Add bootstrap. + + Make testsuite less sensitive to doc changes. + * doc/m4.texinfo: Use m4.input instead of filename. + * checks/check-them (xerr): Turn m4.input into filename. + * checks/Makefile.in (dist): Depend on stamp-checks. + + Portability updates for OS/2. + * src/Makefile.in (EXEEXT, OBJEXT): Define. + (LINK): Use CFLAGS. + (.c.obj): Define. + * lib/Makefile.in (OBJEXT): Define. + (.c.obj): Define. + * doc/Makefile.in (install, uninstall): Install info files into + the dir listing. + Reported by Andreas Buening. + +2006-05-09 Eric Blake <ebb9@byu.net> + + * install-sh: Update to newer upstream version. + * mkinstalldirs: Likewise. + Reported by Andreas Buening. + + * src/m4.c (main): Bump copyright year. + * Makefile.in (datarootdir): Define, for autoconf 2.59c. + * doc/Makefile.in (datarootdir): Likewise. + +2006-05-08 Eric Blake <ebb9@byu.net> + + * THANKS: Update. + * doc/m4.texinfo (Bugs): Backport bug email address from head. + Reported by Stepan Kasal. + +2005-12-04 Ilya N. Golubev <gin@mo.msk.ru> (tiny change) + + * input.c (match_input): Do not pass expression with side effect + to `obstack_grow'. Fix <INTERNAL ERROR: Recursive push_string!>. + * NEWS: Updated. + +2005-12-04 Gary V. Vaughan <gary@gnu.org> (tiny change) + + * doc/m4.texinfo (How to debug macros and input): s/woould/would/ + Reported by Damian Menscher. + +2005-10-19 Gary V. Vaughan <gary@gnu.org> (tiny change) + + * configure.ac (AC_INIT): Bump to 1.4.4a. + +2005-10-19 Gary V. Vaughan <gary@gnu.org> (tiny change) + + Release 1.4.4: + * configure.ac (AC_INIT): Bump to 1.4.4. + * NEWS: Describe 1.4.4's changes. + * INSTALL, install-sh, doc/texinfo.tex: Updated from upstream. + +2005-10-17 John Gatewood Ham <zappaman@buraphalinux.org> (tiny change) + + * src/m4.c: fix return code when non-existent files are processed + +2005-10-17 John Gatewood Ham <zappaman@buraphalinux.org> (tiny change) + + * README: update email address for bug reports. + +2005-10-17 Gary V. Vaughan <gary@gnu.org> + + * doc/m4.info: Generated files are not kept in the repository. + +2005-05-01 Gary V. Vaughan <gary@gnu.org> + + The FSF are moving offices today. Changed their contact address + in all files from `59 Temple Place, Suite 330, MA 02111-1307' to + `51 Franklin Street, Fifth Floor, MA 02110-1301'. + + Also, some of the files here were never updated from the previous + '675 Mass Ave, Cambridge, MA 02139', so changed those to the + '51 Franklin Street, Fifth Floor, MA 02110-1301' address too. + +2005-03-31 Mike Frysinger <vapier@gentoo.org> + + * Makefile.in (bindir, infodir): Substitute from configure rather + than hardcode. + * doc/Makefile.in (infodir): Ditto. + * src/Makefile.in (bindir): Ditto. + * NEWS: Updated. + +2005-03-31 Gary V. Vaughan <gary@gnu.org> + + Changes needed to automate the release process for 1.4.3: + + * Makefile.in (dist): Make .tar.bz2 tarball too. + * Makefile.maint (TSDEPS_DIST): Remove m4/libtool.m4. + (cvs-news): Look 1 line further down for NEWS release number. + (cvs-dist): We don't use automake, so make dist is fine. + Remove double . before suffixes. + (cvs-release): Don't mention manual.html. + (fetch): Get latest gendocs files. + (web-manual): Rewritten to use gendoc for multiformat manuals. + * doc/gendocs.sh: Don't save an old version in m4 CVS! + * doc/m4.texinfo (Index): HFS+ (the file system on my Mac) is case + preserving, but case insensitive, so generating html docs per node + clashes between Index.html, the node file, and index.html, the + top-level of the document tree... + (Index macro): ...so renamed to this. Changed all references. + +2005-03-31 Gary V. Vaughan <gary@gnu.org> (tiny change) + + * configure.ac (AC_INIT): Bump to 1.4.3a. + +2005-03-31 Gary V. Vaughan <gary@gnu.org> (tiny change) + + Release 1.4.3: + * configure.in (AC_INIT): Bump to 1.4.3. + * NEWS: Describe 1.4.3's changes. + +2005-03-31 Gary V. Vaughan <gary@gnu.org> + + * Makefile.maint: New file with release rules, from CVS libtool. + * Makefile.in (DISTFILES): Add Makefile.maint. + * INSTALL, install-sh, doc/texinfo.tex: Updated to latest + canonical versions. + +2005-03-31 Eric Blake <ebb9@byu.net> (tiny change) + + * doc/m4.texinfo (Patsubst): Re-add trailing space required by + checks/47.patsubst, with a redundant @comment to prevent emacs + from removing it accidentally again. + * checks/get-them: Allow for trailing spaces tucked behind + @comment marks. + +2005-03-31 Eric Blake <ebb9@byu.net> (tiny change) + + * doc/Makefile.in (install, uninstall): Accomodate DESTDIR. + * src/Makefile.in (install, uninstall): Likewise. + +2005-02-07 Gary V. Vaughan <gary@gnu.org> + + * lib/regex.c, lib/regex.h: Reverted gnulib update, which broke + on Cygwin. + Reported by Eric Blake. + +2005-02-04 Gary V. Vaughan <gary@gnu.org> + + * lib/regex.c, lib/regex.h: Updated from gnulib. + * src/input.c (set_word_regexp): Don't change the word_regexp + unless it compiles correctly. + * NEWS: Updated. + Reported by Frank Schwidom. + + * Makefile.in (stamp-h): Regenerate config.h properly. + +2005-02-03 Gary V. Vaughan <gary@gnu.org> + + * configure.ac (AC_DEFINE): Fix overquoting of description + argument. + + * src/m4.h (__CYGWIN__, WIN32): Canonicalise Windows and Cygwin + recognition macros. + * src/freeze.c (produce_frozen_state): Use \n line-endings even + on Windows, so that the frozen file reader will work. + Reported by Josef T. Burger. + + * src/m4.c (main): Modernise the --version output. + +2005-02-03 Gary V. Vaughan <gary@gnu.org> + + Modernise the configury a little to prevent spurious errors from + Autoconf-2.59's autoreconf: + + * config.h.in: Renamed to... + * config-h.in: ...this to better support DOS 8.3 file systems. + * acconfig.h: Removed. + * configure.in: Renamed to... + * configure.ac: ...this, and AC_DEFINE used to declare config.h + entry comments. Slight reorganisation and reformatting. + * aclocal.m4: Use third argument to AC_DEFINE to declare config.h + entry comments. + (AC_INIT): Use a modern 3 argument call. + * Makefile.in, checks/Makefile.in, doc/Makefile.in, + examples/Makefile.in, lib/Makefile.in, src/Makefile.in: + s/PRODUCT/PACKAGE/g. + * Makefile.in (DISTFILES): Removed acconfig.h, configure.in, + config.h.in. Added configure.ac, config-h.in. + (stamp-h.in): Removed acconfig.h from dependencies. + (configure): Depends on configure.ac, not configure.in. + * doc/Makefile.in (stamp-vti): Ditto. + * src/freeze.c (produce_frozen_state), src/m4.c (main): Adjust for + difference between PRODUCT="m4" and PACKAGE="GNU M4". + * configure: Regenerated. + +2005-02-03 Noah Misch <noah@cs.caltech.edu> + + * src/output.c (mkstemp): Make non-static, and build regardless of + HAVE_TMPFILE; src/builtin.c also needs this replacement. + * NEWS: Update. + +2004-09-09 Vincent Lonngren <Vincent.lonngren.759@student.lu.se> + + * configure.in (AC_CHECK_HEADERS): Commit works best when you save + changes from your editor buffer first. + + * configure.in (AC_CHECK_HEADERS): Add signal.h, sys/signal.h. + * src/m4.c: And include them as appropriate. + * NEWS: Updated. + +2004-09-09 Andreas Schwab <schwab@suse.de> + + Refactoring of the string read case in next_char provides about a + 20% speedup of M4 as typically used by autoconf: + + * src/input.c (next_char_1): Renamed from next_char. + (next_char): New macro. + * NEWS: Updated. + +2004-08-21 Gary V. Vaughan <gary@gnu.org> + + * configure.in (VERSION): Bump to 1.4.2a. + +2004-08-19 Paul Eggert <eggert@twinsun.com> + + Release 1.4.2. + * configure.in (VERSION): Bump to 1.4.2. + * News: Describe 1.4.2's changes. + + * src/m4.c (reference_error): Preserve errno, since M4ERROR + relies on this. + * src/builtin.c (m4_esyscmd): Clear errno before calling popen. + (m4_maketemp): Clear errno before calling mkstemp. + * src/path.c (path_search): Don't let "free" trash errno when + returning NULL. + * src/output.c (insert_file): Don't assume errno has a valid + value simply because fread returns zero. This fixes a + portability bug reported by Marion Hakanson in + <http://lists.gnu.org/archive/html/bug-m4/2004-07/msg00029.html>. + +2004-06-09 Gary V. Vaughan <gary@gnu.org> + + * configure.in (VERSION): Bump to 1.4.1a. + * NEWS: Place holder for next stable release. + +2004-06-03 Paul Eggert <eggert@cs.ucla.edu> + + Release 1.4.1. + * configure.in (VERSION): Bump to 1.4.1. + * NEWS: Describe 1.4.1's changes. + + * aclocal.m4 (fp_PROG_CC_STDC): Use AC_DEFUN, not define, to + pacify Autoconf 2.59. + + * doc/m4.texinfo: Insert commas after @xref's that lack them, + to pacify Texinfo 4.7. + * doc/Makefile.in (info): Remove info-1, info-2, info-3. + + * src/m4.h, src/debug.c: Use #ifdef __STDC__, not #if __STDC__, to + pacify Sun C compilers. + +2003-09-28 Akim Demaille <akim@epita.fr> + + * src/symtab.c (lookup_symbol): Fix an uninitialized-variable + botch. + +2003-09-03 Santiago Vila <sanvila@debian.org> + + * examples/stackovf.sh: Use tempfile if available. + +2001-04-02 Robert Bihlmeyer <robbe@orcus.priv.at> + + http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=92629 + * src/output.c (m4_insert_file): Do not mix buffered and + unbuffered I/O, as this breaks on the Hurd. (trivial change) + +2001-02-01 Santiago Vila <sanvila@debian.org> + + http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=84451 + * src/m4.c (main): Fix format vulnerabilities. (trivial change) + +2001-02-01 Matt Kraai <kraai@debian.org> + + http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=84416 + * doc/m4.texinfo (Maketemp): Change maketemp to refer to a new, + empty file rather than to a nonexistent file. This closes a common + security hole. + * src/builtin.c (m4_maketemp): Implement the above, by using + mkstemp rather than mktemp. (trivial change) + +2000-01-09 Akim Demaille <demaille@inf.enst.fr> + + * src/builtin.c (expand_ranges): Added break after trailing dash. + This caused misbehaviors on some systems. + +Sat Nov 5 15:52:47 1994 Francois Pinard (pinard@icule) + + Release 1.4. + * doc/Makefile.in (realclean): Also remove stamp-vti. + Reported by Eric Backus. + +Wed Nov 2 00:47:53 1994 Francois Pinard (pinard@icule) + + * src/freeze.c (produce_frozen_state): If the frozen file cannot + be opened, return immediately after producing the error message. + Reported by Andreas Schwab. + + * configure.in: Check for const only after having found possible + ANSIfying compiler flags, this is of no use to check it before. + Reported by Alexander Lehmann. + +Tue Nov 1 22:02:37 1994 Francois Pinard (pinard@icule) + + * src/macro.c (collect_arguments): Cast obstack arguments to + (voidstar), so avoiding compiler warnings. + Reported by Joseph E. Sacco. + + * src/freeze.c (produce_frozen_state): Cast printed lengths to + (int) so they correspond to %d format items. + Reported by Joseph E. Sacco. + + * src/m4.c (main): Cast the argument to xfree to (voidstar). + * src/symtab.c (free_symbol): Idem. + Reported by Karl Vogel. + +Mon Oct 31 02:11:19 1994 Francois Pinard (pinard@icule) + + * Makefile.in (DISTFILES): Distribute BACKLOG. + + * configure.in: Define PRODUCT and VERSION. + * acconfig.h: Document PRODUCT and VERSION. + * src/m4.c, src/freeze.c: Use PRODUCT and VERSION instead of the + constant string m4 and variable or parameter named version. + +Sun Oct 30 08:13:03 1994 Francois Pinard (pinard@icule) + + * src/m4.h, src/debug.c: Replace all #ifdef __STDC__ by #if + __STDC__. Alliant FX/2800 Concentrix 2.2 (i860-BSD4.3) compiler + defines __STDC__ to 0, for indicating it is *not* ANSI! + Reported by Kaveh R. Ghazi. + + * configure.in: Added obsolescent tests for AIX and Minix. + + * doc/Makefile.in (mostlyclean): Remove texclean in dependencies, + which texclean does not exist anymore. + Reported by Eric Backus, Jim Meyering, John David Anglin and + Joseph E. Sacco. + +Sat Oct 29 05:10:03 1994 Francois Pinard (pinard@icule) + + * aclocal.m4 (fp_C_PROTOTYPES): Force -D_HPUX_SOURCE with -Aa. + Reported by John David Anglin. + + * src/ansi2knr.c: New version, sent by Peter Deutsch. + * aclocal.m4 (fp_C_PROTOTYPES): Substitute empty or ansi2knr for + ANSI2KNR, depending on the fact the compiler is ANSI or not. + * src/Makefile.in: Use -Ovarargs=convert on ansi2knr calls. + Remove the sed filter after ansi2knr for debug.c. Use $O instead + of $U, put underline in extensions rather than in basenames. Use + implicit rules, now that regularity makes this possible. + Have $(OBJECTS) depend on $(ANSI2KNR), so to trigger compilation + of ansi2knr whenever it is needed. + * configure.in: Adjusted for correct STACKOVF substitution. + * src/debug.c (trace_format): When not __STDC__, use (...) as a + parameter list, so ansi2knr will convert it to (va_alist) va_dcl. + Reported by David MacKenzie. + + * Makefile.in: Remove binprefix. Use transform_name instead. + Reported by David MacKenzie. + + * doc/Makefile.in: Create version.texi, use it, clean it. + Reported by Jim Meyering. + +Fri Oct 28 20:33:55 1994 Francois Pinard (pinard@icule) + + * Makefile.in (all, install, uninstall): Depend on Makefile. + + * Makefile.in: For actions invoking $(MAKE) from within compound + sh statements, exit non-zero if the sub-make fails. Otherwise, + the top-level make may exit successfully when it should fail. + Reported by Jim Kingdon. + + * {,/*}Makefile.in: Use && after all cd, in case they fail. + + * {,*/}Makefile.in: Declare PRODUCT and VERSION macros. + (dist): Use PRODUCT and VERSION instead of tricks on .fname. + * configure.in: Substitute PRODUCT and VERSION. + + * {,*/}Makefile.in (dist): Always try a hard link before a copy. + +Thu Oct 27 22:32:58 1994 Francois Pinard (pinard@icule) + + * Makefile.in (mostlyclean-local): Do not remove *~. + * */Makefile.in (mostlyclean): Idem. + Reported by Robert E. Brown and Richard Stallman. + +Sun Oct 9 08:30:13 1994 Francois Pinard (pinard@icule) + + * src/m4.h: Get rid of CONFIG_BROKETS. + +Sun Oct 2 16:48:10 1994 Francois Pinard (pinard@icule) + + * configure.in: Use AC_ARG_PROGRAM. + * aclocal.m4 (fp_C_PROTOTYPES): Substitute @kr@ by kr or empty. + Reported by David MacKenzie. + +Sat Oct 1 11:22:42 1994 Francois Pinard (pinard@icule) + + * configure.in: Do not add -O to CFLAGS for GNU C, now that + configure does it automatically. + Reported by Jim Meyering. + +Fri Sep 23 08:16:58 1994 Francois Pinard (pinard@icule) + + * src/stackovf.c: Declare the handler_t typedef earlier in the + code, use it for stackovf_handler. + (setup_stackovf_trap): Use RETSIGTYPE instead of void while + casting sigsegv_handler. + Reported by Robert Bernstein. + + * src/m4.c (main): Initialize program_name to argv[0] without + basename'ing it. + Reported by Karl Berry. + +Sun Sep 18 11:42:50 1994 Francois Pinard (pinard@icule) + + * src/Makefile.in (TAGS): Include a ../lib/TAGS reference. + Reported by Karl Berry. + +Wed Sep 14 10:00:22 1994 Francois Pinard (pinard@icule) + + * lib/Makefile.in (mostlyclean): Added. + (TAGS): Make in $(srcdir). + + * configure.in: Use `choke me' in test, like everywhere! + + * {doc,examples,lib,src}/Makefile.in (check): Deleted, as + unreacheable and useless. + + * doc/Makefile.in (texclean): Deleted, merged in mostlyclean. + + * lib/Makefile.in (DISTFILES): Distribute TAGS. + (distclean): Do not remove TAGS. + (realclean): Remove it. + * Makefile.in: Make TAGS in lib also, not just in src. + Reported by Karl Berry. + + * Makefile.in (distclean, realclean): Instead of recursively + calling $(MAKE) for the -local part, allow parallel execution of + -recursive and -local, only delay the removal of config.status, + which is repeated in both goals. + +Tue Sep 13 19:21:05 1994 Francois Pinard (pinard@icule) + + Release 1.3. + * Makefile.in: Group all *clean-recursive goals in one, using sed + to remove `-recursive' while calling make recursively. Also, use + a subshell for each recursive $(MAKE). + Reported by Jim Meyering. + + * src/m4.h (memcpy): Define with bcopy for BSD systems. + Reported by Kaveh R. Ghazi. + + * src/Makefile.in (ansi2knr): Use $(LIBS) while linking, for SunOS + 4.1.3 requires -ldl to link even ansik2nr, and we need a way to + specify it. + + * configure.in: Use date instead of touch for stamp-h. + * Makefile.in (stamp-h.in): Idem. + + * Makefile.in (distclean, realclean): Force serial execution of + both goals, in case parallel makes are being used. + Reported by Jim Meyering. + + * src/Makefile.in (DISTFILES): Distribute TAGS. + (distclean): Do not remove TAGS. + (realclean): Remove it. + Reported by Karl Berry. + +Sat Sep 10 12:34:04 1994 Francois Pinard (pinard@icule) + + * configure.in: Use fp_ to match aclocal.m4. Revert _OS_ macros + to old names, for following Autoconf. + +Thu Sep 8 15:07:27 1994 Francois Pinard (pinard@icule) + + * Makefile.in (MDEFINES): Remove INSTALL substitutions, for + ./install.sh will not be correctly referred to in sub-Makefiles. + Reported by John David Anglin. + + * doc/Makefile.in (texclean): Remove *.cps and *.fns too. + Reported by Eric Backus. + + * Makefile.in, checks/Makefile.in, doc/Makefile.in, + examples/Makefile.in, lib/Makefile.in, src/Makefile.in: Limit + config.status into remaking this directory's Makefile only. + * Makefile.in (stamp-h): Do not check nor touch stamp-h. + * configure.in (AC_OUTPUT): Touch stamp-h if CONFIG_HEADERS. + Reported by Jim Meyering. + +Tue Sep 6 12:07:33 1994 Francois Pinard (pinard@icule) + + * configure.in: Correct stack overflow detection logic, taking + care of systems having only incomplete implementations (like for + Pyramid 9820 OSx 5.0d). + Reported by Kaveh R. Ghazi. + + * src/Makefile.in (TAGS): Remote -t from etags call. + +Fri Sep 2 10:37:10 1994 Francois Pinard (pinard@icule) + + * lib/Makefile.in (install): Depend on all. + +Wed Aug 31 11:17:21 1994 Francois Pinard (pinard@icule) + + * examples/Makefile.in (mostlyclean): Do not depend on texclean. + Reported by Jim Meyering and John David Anglin. + + * Makefile.in (distclean-local): Delete config.log. + Reported by Jim Meyering. + + Solidify frozen files with respect to -P: + * src/m4.c: Have -P set prefix_all_buitins variable instead of + calling a function by that name. Declare the variable. + * src/m4.h: Adjust declaration for prefix_all_buitins. + * src/builtin.c (builtin_init): Merge in functionality from + previous prefix_all_buitins function, while making entries in the + symbol table, but not modifying the builtin description itself. + + * src/freeze.c (reload_frozen_state): Add a useless `break;', + because *many* compilers do not accept an empty `default:'. + Reported by Akiko Matsushita, Eric Backus, John David Anglin, + Joseph E. Sacco, Kaveh R. Ghazi, Tom McConnell and Ulrich Drepper. + + * configure.in: Use AC_TYPE_SIGNAL. + * src/stackovf.c (setup_stackovf_trap): Use RETSIGTYPE. + Reported by Robert Bernstein. + + * checks/Makefile.in (check): Modify PATH so check-them will find + m4 in the src directory. + * Makefile.in (check): Don't. + Reported by Akiko Matsushita and Jim Meyering. + + * src/output.c (make_room_for, output_character_helper): New + functions, for implementing a global MAXIMUM_TOTAL_SIZE instead of + a per buffer MAXIMUM_BUFFER_SIZE. + + * src/output.c (output_text): New function, for optimizing the + output of strings of characters. Use it. + +Tue Aug 30 01:44:29 1994 Francois Pinard (pinard@icule) + + * doc, src: New directories reorganizing the distribution. + * doc/Makefile.in, src/Makefile.in, examples/Makefile.in: New + files. + * Makefile.in: Adjusted. + * configure.in: Configure new Makefiles. + + * m4.h: Declare STRING typedef. Use it for comment and quote + strings, adjusting all references. (This is the rudiments of a + beginning for the eventual withdrawal of NUL terminated strings.) + * output.c (shipout_text): Accept a length parameter, and use it. + All callers adjusted. + +Mon Aug 29 12:27:19 1994 Francois Pinard (pinard@icule) + + * m4.h: Include <unistd.h> if it exists. + * stackovf.c: Don't. + + Clean up for current_diversion variable: + * output.c: Move current_diversion from builtin.c. + * m4.h: Declare current_diversion so builtin.c can access it. + * output.c (output_init, make_diversion): Initialize or update + current_diversion. + * builtin.c (builtin_init, m4_divert): Leave current_diversion + alone. + + Remove limit on number of diversions: + * output.c: Replace ndiversion by diversions, declare it. + (output_init): Allocate only diversion 0. + (make_diversion): Allocate new diversions as needed. + * m4.h, m4.c: Remove NDIVERSIONS and ndiversion related stuff. + * m4.c: Still accept -N, but do nothing with it. + Reported by David MacKenzie. + + Freeze diversions: + * output.c (freeze_diversions): New function. + * m4.h: Declare freeze_diversions. + * freeze.c: Document frozen file format, revise it, call + freeze_diversions to add diversions to frozen format, and code to + reload them properly. + * m4.c: Do not undivert automatically at end when status being + frozen. Do not call builtin_init when reloading frozen state. + + Speed up diversion processing: + * output.c: Add INITIAL_BUFFER_SIZE, MAXIMUM_BUFFER_SIZE, + COPY_BUFFER_SIZE, in-memory diversion buffers, struct diversion + structure and variables, cached variables out of output_diversion, + reallocate_diversion_for and OUTPUT_CHARACTER. + (shipout_text, make_diversion, insert_diversion): Adapted to new + structures. + (insert_file): Use better buffering. + Reported by David MacKenzie. + +Sun Aug 28 05:20:02 1994 Francois Pinard (pinard@icule) + + * Makefile.in, lib/Makefile.in, checks/Makefile.in: Arrange so + dist works from another build directory. + +Sat Aug 27 14:32:45 1994 Francois Pinard (pinard@icule) + + * symtab.c (hack_all_symbols): Use hash_table_size instead of + constant HASHMAX, for -H option to work better. + + * builtin.c (DECLARE): Simplify by using _ (). + + * freeze.c: New file. + * Makefile.in: Compile it, distribute it. + * m4.c: Recognize, document and process --freeze-state (-F) and + --reload-state (-R) options. Pass a true flag to builtin_init + only if no reloading some state. + * builtin.c (define_builtin): Remove static specifier. + (find_builtin_by_name): Remove static specifier. + (builtin_init): Accept and obey a flag argument. + * m4.h: Add declarations for freeze.c, changes for builtin.c. + +Wed Aug 24 16:14:19 1994 Francois Pinard (pinard@icule) + + * builtin.c (dumpdef_cmp): Rewrite so the cast protect the const + specifier. + + * configure.in: Implement --with-dmalloc. + * acconfig.h: Document WITH_DMALLOC. + * m4.h: Add code for when WITH_DMALLOC. + +Mon Aug 15 12:38:05 1994 Francois Pinard (pinard@icule) + + * m4.c (long_options): Use "error-output", the dash was missing. + Reported by Akiko Matsushita. + +Fri Aug 12 16:38:01 1994 Francois Pinard (pinard@icule) + + * m4.h: Include <sys/types.h>. + * builtin.c, debug.c, m4.c, output.c, stackovf.c: Don't. + * m4.h: Declare len_lquote and len_rquote as size_t, not int. + int. + * input.c: Declare len_lquote, len_rquote, len_bcomm and len_ecomm + as size_t, not int. + * builtin.c (dump_args): Declare len as size_t, not int. + + * debug.c: Prototype the forward declaration of debug_set_file. + + * builtin.c (m4_undivert): Replace div by file, for avoiding the + shadowing of this variable. + * output.c (insert_diversion): Idem. + + * input.c: Delete def_rquote, def_lquote, def_bcomm and def_ecomm. + (input_init): Duplicate default quote and comment strings. + (set_quotes): Free previous quote strings in all cases. Duplicate + even default quote strings. + (set_comment): Free previous comment strings in all cases. + Duplicate even default comment strings. + + * configure.in: Updated for Autoconf 2.0. + * Makefile.in (distclean-local): Also delete config.cache. + + * m4.c (usage): Reorganize the --help output by topic. Include a + description for debugging flags. + +Fri Jul 29 10:15:52 1994 Francois Pinard (pinard@icule) + + * configure.in: If sigaction is available and SA_ONSTACK defined, + use sigaction. Otherwise, if sigvec is available and SV_ONSTACK + defined, use sigvec. Else don't compile stackovf.c. + * stackovf.c (setup_stackovf_trap): Idem. + Reported by Jim Avera, Karl Berry, Kaveh R. Ghazi, Matthias Rabe + and Simon Leinen. + +Thu Jul 21 22:43:17 1994 Francois Pinard (pinard@icule) + + * m4.c (usage): Replace printf par fputs. + +Mon Jul 18 23:48:23 1994 Francois Pinard (pinard@icule) + + * Release 1.2 + +Sun Jul 17 08:08:25 1994 Francois Pinard (pinard@icule) + + * configure.in: Check for sigaction and sigvec. Add a new delayed + check for RLIMIT_STACK, combine in the checking for getrlimit. + All those things are not universally available. + * stackovf.c: Split setting up the trap handler and catching + signals, for better taking care of various configure outcomes. + * examples/stackovf.sh: Correct a typo. + Reported by Eric Backus, Jim Avera and Jim Meyering. + +Sat Jul 16 20:36:19 1994 Francois Pinard (pinard@icule) + + * ansi2knr.c: New version sent by its author, Peter Deutsch. + +Fri Jul 15 14:36:21 1994 Francois Pinard (pinard@icule) + + * Makefile.in: Modify so parallel make will not try making + lib/libm4.a twice simultaneously. + Reported by Jim Meyering. + +Thu Jul 14 17:23:17 1994 Francois Pinard (pinard@icule) + + * stackovf.c (setup_stackovf_trap): Replace "Don't" by "Do not" in + error message, for when no code possibility exists. Even if this + line is completely #ifdef'ed out, it brings a syntax error. + Reported by Andreas Schwab, Jim Meyering and Joseph E. Sacco. + + * Makefile.in (install): Have install depend on all too, for lib + to be remade as needed. + + * examples/stackovf.sh: Try ksh, bsh and bash for shells + providing ulimit, instead of using only ksh. + Reported by Jim Avera and Joseph E. Sacco. + +Tue Jul 12 06:54:31 1994 Francois Pinard (pinard@icule) + + * Makefile.in (check): Have it depend on all instead of m4. In + this way, a change in lib will be detected and processed. + + * builtin.c (numeric_arg): Use strtol and verify the conversion, + instead of using sscanf which stops as soon as there is a + non-digit in the input. Previously, incr(1xyzzy), eval(1,2xyzzy) + and divert(1xyzzy) were all accepted without any warning or error + messages. + * m4.h: Declare strtol as long if not including stdlib.h. + * configure.in: Check for limits.h, and replace strtol if missing. + * lib/Makefile.in: Substitute LIBOBJS. Distribute strtol.c. + * lib/strtol.c: New file, from elsewhere. + Reported by Andreas Schwab. + +Thu Jul 7 22:38:10 1994 Francois Pinard (pinard@icule) + + * macro.c (expand_macro): Cast value to (boolean) prior to + assigning it to traced. + Reported by Tom McConnell. + + * Makefile.in (m4): Always make all in lib first. + Reported by Jim Meyering. + +Wed Jul 6 13:16:31 1994 Jim Avera (jima@netcom.com) + + * stackovf.c: Isolated OS-dependent sections; Improved portability, + adding support for SunOS/BSD (sigvec, sigstack, and 4-parameter signal + handlers), and a default error message if the fault address is not + available (when neither siginfo.h nor BSD sigcontext are supported). + * configure.in: Changes for stackovf.h: Check for sigcontext, + sigaction, sigstack, and define rlim_t as int if necessary. + * acconfig.h: Added HAVE_SIGCONTEXT and rlim_t. + * examples/stackovf.sh: Run m4 -L99999999 to allow stack overflow. + * ansi2knr.c: Fix for func-ptr args; convert "..." to varargs syntax. + +Tue Jul 5 19:13:54 1994 Francois Pinard (pinard@icule) + + * configure.in: Use AC_SET_MAKE. + * Makefile.in: Use @SET_MAKE@. + Reported by Jim Meyering. + + * checks/check-them: Do not trap on SIGQUIT or SIGALRM. + Reported by Ian Taylor. + +Sat Jul 2 00:58:47 1994 Francois Pinard (pinard@icule) + + * configure.in: Remove dependency of USE_STACKOVF on STDC_HEADERS, + because siginfo.h is unrelated to standard headers, and siginfo.h + is already checked for. + Reported by Joseph E. Sacco. + + * acconfig.h, aclocal.m4, m4.h: Replace HAVE_PROTOTYPES by + PROTOTYPES. + * aclocal.m4, configure.in: Replace AC_HAVE_PROTOTYPES by + AC_PROTOTYPES. + +Wed Jun 29 22:41:53 1994 Francois Pinard (pinard@icule) + + * builtin.c (substitute): Use \& to represent this part of the + string which was matched by the whole regexp, instead of + representing the whole string. Any usage of \0 issues a warning + and acts like \&, it will disappear in some subsequent release. + +Mon Jun 27 14:24:23 1994 Francois Pinard (pinard@icule) + + * m4.c: Complete prototype for forwarded declaration of usage. + + * input.c (init_macro_token): Correct own reference in error + message. Previous name get_macro_func was referred to instead. + (next_char): Correct own reference in error message. Previous + name advance_input was referred to instead. + + * m4.h: Declare eval_t and unsigned_eval_t typedefs to 32 bits. + * eval.c (logical_or_term, logical_and_term, or_term, xor_term, + and_term, not_term, logical_not_term, cmp_term, shift_term, + add_term, mult_term, exp_term, unary_term, simple_term): Add + prototype to forwarded declarations. Declare parameter v1 as + eval_t * instead of int *. Same for local variable v2 in dyadic + functions. Same for result in exp_term. + * builtin.c (m4_eval): Declare value as eval_t instead of int. + (ntoa): Declare value as eval_t instead of int. Declare uvalue as + unsigned_eval_t instead of unsigned int. Change casts accordingly. + (shipout_int): Cast first argument of ntoa to eval_t. + Reported by Thorsten Ohl. + + * macro.c: Complete the prototypes of forwarded expand_macro and + expand_token. + Reported by Thorsten Ohl. + + * m4.h: Define voidstar as void * or char * depending on __STDC__. + The Ultrix 3.1 compiler cannot do much with void pointers. + + * builtin.c (dumpdef_cmp): Replace void * by voidstar. + * m4.c (xfree): Replace void * by voidstar. + Reported by Tom McConnell. + + * ansi2knr.1: New, from elsewhere. + * Makefile.in (DISTFILES): Distribute ansi2knr.1 + + * Makefile.in (stamp-h.in): Avoid running ./config.status if + stamp-h does not exist yet. This avoids running it a second time + just after the initial ./configure. + Reported by David MacKenzie and Tom McConnell. + + * m4.h: Replace the enum debug_info declaration with a series of + #define's. The Ultrix 3.1 compiler would otherwise need casting + (int) to most references, when used in expressions. + Reported by Tom McConnell. + +Sat Jun 25 00:10:05 1994 Francois Pinard (pinard@icule) + + * aclocal.m4: Replace FP_PROTOTYPES by AC_HAVE_PROTOTYPES, + following an idea from Brook G. Milligan. AC_HAVE_PROTOTYPES + calls the compiler. Previously, FP_PROTOTYPES was only calling + the preprocessor; by not being subject to CFLAGS, this was + discouraging those flags asking for ANSI compilation. + * acconfig.h: Document HAVE_PROTOTYPES. + * configure.in: Use AC_HAVE_PROTOTYPES instead of FP_PROTOTYPES. + * m4.h: Define _() according to HAVE_PROTOTYPES, not __STDC__. + Reported by Eric Backus. + + * configure.in: Substitute CFLAGS and LDFLAGS, taking their value + from the environment. Default CFLAGS to -g if not set. + * Makefile.in: Have CFLAGS and LDFLAGS substituted from configure. + * lib/Makefile.in: Have CFLAGS substituted from configure. + Reported by Eric Backus and Tom McConnell. + + * configure.in: m4_undefine changeword before using AC_ENABLE. + + * m4.h: Declare prototypes for error (for ANSI compilers only), + prefix_all_builtins and reference_error. + Reported by Tom McConnell. + + * input.c (set_word_regexp): Do not try to initialize the array + test from a string, this does not work with non-ANSI compilers. + Reported by Eric Backus. + + * Makefile.in (dist): Clean examples/ before saving it. + (distclean-local): Also remove stamp-h. + Reported by Eric Backus. + + * Makefile.in (_stackovf.c): Goal for compiling stacokovf.c with + non ANSI compilers. + Reported by Tom McConnell. + + * checks/Makefile.in (clean): Depends on mostlyclean. + (mostlyclean): New goal. + +Fri Jun 24 23:30:31 1994 Francois Pinard (pinard@icule) + + * Makefile.in (DISTFILES): Distribute install.sh. + * install.sh: New file, copied from elsewhere. + Reported by Assar Westerlund and Kaveh R. Ghazi. + +Thu Jun 23 00:00:30 1994 Francois Pinard (pinard@icule) + + * configure.in: Define ENABLE_CHANGEWORD if --enable-changeword. + * acconfig.h: Explain ENABLE_CHANGEWORD. + + [These modifs all depend upon ENABLE_CHANGEWORD and are adapted + from code provided by Pete Chown] + * m4.h: Add original_text field to u_t variant of union u. + Declare TOKEN_DATA_FUNC macro. + * builtin.c: Declare changeword. + (m4_changeword): New function. + * input.c: Include "regex.h", define variables with word regexps. + (input_init): Initialize the word regexp. + (set_word_regexp): New. + (next_token): Declare local variables, use the previous code if + default_word_regexp is true. Else, match using a new code. Save + the original text. + * macro.c (expand_token): Ship out original text if not a macro + name. + Reported by Krste Asanovic and Pete Chown. + + [These modifs all depend upon ENABLE_CHANGEWORD] + * m4.h: Declare external user_word_regexp. + * m4.c: Declare user_word_regexp, and initialize it from + --word-regexp or -W, or NULL if not specified. + * input.c: Use user_word_regexp if specified, instead of + DEFAULT_WORD_REGEXP. + + * Makefile.in (m4): Revert Jan 3 1994 change. I'm unable to + agree with it. + + * Makefile.in, lib/Makefile.in: Limit suffixes to .c and .o. + * checks/Makefile.in: Empty the suffix list. + Reported by Geoff Russell, Joel Sherrill and Roland McGrath. + + * m4.c: Declare nesting_limit and initialize it to 250. + Implement -LNUMBER or --nesting-limit=NUMBER to change its + value. + * m4.h: Declare nesting_limit as external. + * macro.c (expand_macro): Stop execution whenever nesting limit + is exceeded. + Reported by Bengt Mertensson. + + * eval.c (evaluate): Diagnose excess characters in eval input. + Things like `eval(08)' used to return 0 with no diagnostic. + + * m4.h: Capitalize first letter of all macro arguments in + definitions. + + * m4.c: Declare warning_status, initialize it to 0. Add new + option -E, or --fatal-warnings, which sets warning_status to + EXIT_FAILURE instead. + * m4.h: Declare external warning_status. Define EXIT_SUCCESS and + EXIT_FAILURE if not otherwise done by header files. + * m4.c: Delete declarations for EXIT_SUCCESS and EXIT_FAILURE. + * m4.c, input.c, output.c, symtab.c, builtin.c, macro.c, debug.c, + eval.c: Replace 0 by warning_status and 1 by EXIT_FAILURE in first + argument of all M4ERROR calls. + Reported by Noah Friedman. + + * examples/incl-test.m4: Renamed from incl_test.m4. + * examples/include.m4: Include incl-test.m4 instead of + incl_test.m4. + * examples/multiquotes.m4: Renamed from multi-quotes.m. + +Wed Jun 22 21:58:54 1994 Francois Pinard (pinard@icule) + + * configure.in: Avoid USE_STACKOVF if <siginfo.h> not found. Note + that Jim developped stackovf.c on a 486 running SVR4.0 (ESIX), and + also tested it on a Sun Sparc workstation running SunOS 4.x. + + * format.c (format): When not HAVE_EFGCVT, m4 was failing the + 49.format check, abusing a `union values' argument with sprintf + without selecting the proper field. Now, save the formatting type + first, delaying the fetch of the corresponding argument. + Reported by Joseph E. Sacco and Tom Quinn. + + * format.c (format): Remove const from char *fmt declaration when + not HAVE_EFGCVT, because a NUL may be forced into it. + + * m4.h: Declare atof() when not STDC_HEADERS. + Reported by Joseph E. Sacco. + + * Regenerate configure using Autoconf 1.11, this corrects a + problem about an incorrect cpp seting on NeXT 3.1. + Reported by Alexander Lehmann. + +Sun Jun 5 16:25:19 1994 Francois Pinard (pinard@icule) + + * m4.h (_): Change argument from `x' to `Args'. + +Wed May 4 23:59:39 1994 Francois Pinard (pinard@icule) + + * Makefile.in: Remove all occurrences of $(MFLAGS), which were + bringing more evil than good on a few systems. + Reported by Greg A. Woods. + +Fri Apr 22 15:59:35 1994 Francois Pinard (pinard@icule) + + * m4.h: Rename Args() to _(). + * m4.h: Remove extern specifier from all function declarations. + +Fri Apr 22 15:51:21 1994 Jim Avera (jima@netcom.com) + + * stackovf.c: New file implementing stack-overflow detection. + * configure.in: Check for getrlimit, sigaction. If all of + standard headers, getrlimit and sigaction, define USE_STACKOVF and + substitute ${U}stackovf.o for STACKOVF. + * acconfig.h: Declare USE_STACKOVF. + * Makefile.in: Distribute stackovf.c, link with $(STACKOVF). + * m4.h: Declare setup_stackovf_trap(). + * m4.c: Call setup_stackovf_trap(). + * tests/stackovf_test.sh: New file. + +Wed Apr 13 14:10:30 1994 Francois Pinard (pinard@icule) + + * checks/Makefile.in: Rename .all-stamp to stamp-checks. + + * Makefile.in (Makefile, etc.): Adapt for Autoconf 1.8. + +Sun Jan 30 14:24:19 1994 (pinard at icule) + + * m4.h: Remove definition of volatile, not used anymore. + Reported by Jim Meyering and Joseph E. Sacco. + + * m4.h: Consistently use `do { ... } while (0)' in macros, instead + of `if ... else /* nothing */' for if macros. + Reported by Jim Meyering. + + * builtin.c (m4_regexp): Reorganize the code for avoiding a + warning from gcc about `repl' possibly used before defined. + Reported by Jim Meyering. + + * m4.h: Avoid a pre-ANSI <memory.h> together with <string.h>. + Reported by Jim Meyering. + +Tue Jan 25 18:39:37 1994 Francois Pinard (pinard at icule) + + * m4.h: Move the conditional definition of volatile after the + inclusion of system files, because they may define it first. + +Tue Jan 4 19:46:50 1994 Francois Pinard (pinard@icule) + + * checks/Makefile.in (CHECKS): Add a useless `*' before `[', to + get around a problem with Alpha make seeing a syntax error, there. + Reported by Vern Paxson. + +Mon Jan 3 00:21:45 1994 Francois Pinard (pinard@icule) + + * Makefile.in: Do not define LDFLAGS, use CFLAGS on link calls. + Reported by Richard Stallman. + +Sat Dec 25 08:06:05 1993 Francois Pinard (pinard@icule) + + * configure.in: Correct test for strerror, AC_FUNC_CHECK was used + instead of AC_HAVE_FUNCS. + Reported by Noah Friedman. + +Wed Dec 1 09:37:53 1993 Francois Pinard (pinard@icule) + + * m4.c: Initialize show_help and show_version to zero. + + * m4.c: Ensure EXIT_SUCCESS and EXIT_FAILURE are defined. + Use them in exit() and usage() calls. + +Sat Nov 27 10:43:24 1993 Francois Pinard (pinard@icule) + + * m4.h: Delete extern sys_nerr, sys_errlist declarations, and + syserr() macro. Delete errref, add reference_error and M4ERROR. + * m4.c: Replace errref, which was returning an input reference + string, with reference_error, which prints it on standard error. + * builtin.c, output.c: Use errno as second parameter to error, + instead of using syserr() with %s. + * *.c: Use M4ERROR instead of error: no more errref() with %s. + Doing so, the program name appears after the input reference + instead of before, which eases M-x next-error processing. + +Wed Nov 24 22:16:15 1993 Francois Pinard (pinard@icule) + + * checks/get-them: Escape braces with backslashes in patterns, + because HPUX-9.01 awk needs this. + Reported by Jim Meyering. + +Mon Nov 22 10:55:52 1993 Francois Pinard (pinard@icule) + + * builtin.c: Declare "FILE *popen ();". + + * m4.h: Remove MESSAGE{,1,2}, WARNING1, FATAL{,1}, INTERNAL_ERROR + macros, replace error_message_prefix() declaration by errref()'s. + Declare xrealloc, for use in errref(). + * m4.c: Delete error_message_prefix() function, add errref(). + * *.c: Use error() systematically in place of all error macros, + now that error() flushes stdout first. Make needed adjustments. + + * m4.h: Remove const in sys_errlist[] declaration, it creates + conflicts on SGI and Alpha. + Reported by Kaveh R. Ghazi. + +Sat Nov 20 08:26:15 1993 Francois Pinard (pinard@icule) + + * m4.c: Include <getopt.h> instead of "getopt.h". + + * configure.in: Output to config.h. Use HAVE_FUNCS preferably. + * acconfig.h: New, for documenting HAVE_EFGCVT. + * Makefile.in: Distribute acconfig.h, .stamp-h.in and config.h.in, + use them wherever appropriate. Also use -I. for compilations. + * lib/Makefile.in: Use -I.. for compilations. + * *.c: Include <config.h> or "config.h". + + * m4.h: Test for HAVE_MEMORY_H instead of NEED_MEMORY_H. + * configure.in: Use AC_HAVE_HEADERS(memory.h), delete AC_MEMORY_H. + +Wed Nov 17 09:34:55 1993 Francois Pinard (pinard@icule) + + * builtin.c (m4_eval): Cast strlen to (int) before comparing. + + * input.c (input_init): Initialize quote and comment strings + explicitely instead of calling set_quotes and set_comment: by + doing so, we ensure we do not free uninitialized variables. + + * checks/check-them: Reverse arguments to both diff, so the + expected is on the left and the obtained on the right. + + * m4.h: Add MESSAGE{,1,2}, WARNING1, FATAL{,1} and INTERNAL_ERROR + macros. Delete declarations for m4error, warning, fatal and + internal_error, add declaration for error_message_prefix. + * m4.c: Delete m4error, warning, fatal and internal_error + routines, add error_message_prefix routine. + * *.c: Replace m4error routine calls with MESSAGE* macro calls, + warning with WARNING*, fatal with FATAL* and internal_error with + INTERNAL_ERROR*. + * Makefile.in (_m4.c): Do not adjust ansi2knr output for va_alist, + this is not needed anymore. + + * m4.h: Declare extern FILE *debug. Add DEBUG_PRINT{1,3} and + DEBUG_MESSAGE{,1,2} macros. Delete declarations for debug_print + and debug_message, add declaration for debug_message_prefix. + * debug.c: Remove static specifier for FILE *debug declaration. + Delete debug_print and debug_message routines, add + debug_message_prefix routine. + * builtin.c, debug.c: Replace debug_print routine calls with + DEBUG_PRINT* macro calls. + * input.c, path.c: Replace debug_message routine calls with + DEBUG_MESSAGE* macro calls. + + * m4.h: Remove inclusion of <varargs.h>. + * debug.c: Include <stdarg.h> or <varargs.h>. + (trace_format): Use stdarg instead of varargs if __STDC__. + + * configure.in: Remove checks for vfprintf and _doprnt. These + implementations use varargs tricks which are not portable enough. + * lib/vfprintf.c: Deleted. + * lib/_doprnt.c: Deleted. + * lib/Makefile.in: Adjusted accordingly. Remove LIBOBJS. + Reported by Joel Sherrill. + + * path.c (add_include_directory): Use xstrdup. + + * builtin.c (find_builtin_by_name): Declare static. + + * *.[ch]: Add const to a few "char *" declarations. + + * configure.in: Remove commented tests for fileno() and fstat(). + * debug.c: Remove comments about HAVE_FILENO and HAVE_FSTAT. + + * debug.c (debug_flush_files): New. + * m4.h: Declares it. + * builtin.c (m4_syscmd, m4_esyscmd): Use it. + Reported by Nicolas Pioch. + +Fri Nov 12 10:02:26 1993 Francois Pinard (pinard@icule) + + * Makefile.in (m4.dvi): Use m4.texinfo instead of m4.texi. + Reported by Joel Sherrill. + + * builtin.c (prefix_all_builtins): Instead of the table size, use + the null entry at end for stopping the loop. It was overwritten. + Reported by Andreas Schwab and Jim Meyering. + + * builtin.c (prefix_all_builtins): Cast xmalloc to (char *). + Reported by Kaveh R. Ghazi. + + * macro.c (call_macro): Add * in (*SYMBOL_FUNC (sym)) (...). + Reported by Karl Vogel. + +Tue Nov 9 09:31:47 1993 Francois Pinard (pinard@icule) + + * m4.h: Do not define volatile if already defined. + Reported by Rene' Seindal. + + * lib/Makefile.in: Add a forgotten ALLOCA=@ALLOCA@. Grrr! + + Reported by Bernhard Daeubler, Eric Backus, Hal Peterson, Hoang + Uong, Ian Taylor, Kaveh R. Ghazi, Tom McConnell and Walter Wong. + +Mon Nov 8 21:11:44 1993 Francois Pinard (pinard@icule) + + * m4.h: Define strchr and strrchr in terms of index and rindex, + instead of the other way around. + * builtin.c, m4.c, path.c: Use strchr instead of index. + + * input.c (next_char): Remove a "break;" after a "return ...;". + Reported by Tom McConnell. + +Mon Nov 8 12:45:34 1993 Francois Pinard (pinard@icule) + + * Release 1.1 + + * configure.in: Do not copy check files in the build hierarchy. + * checks/check-them: Identify the m4 version being checked. For + finding m4, look in $PATH instead of in the parent directory. + * Makefile.in (check): Prepend `pwd` to $PATH before checking. + * checks/Makefile.in (.all-stamp): Always create check files in + the source hierarchy, not anymore in the build hierarchy. + (check): cd to the source hierarchy before performing checks. + Do not copy nor clean COPYING anymore, take it from `..'. + Reported by Tom McConnell. + + * Makefile.in (Makefile): Use $(SHELL). + (config.status): Use $(SHELL). Use "config.status --recheck" + instead of "configure --no-create", which is obsolete. + Reported by Tom McConnell. + +Fri Nov 5 09:49:30 1993 Francois Pinard (pinard@compy.IRO.UMontreal.CA) + + * m4.c (usage): Use "%s" instead of "m4" in format string. + Reported by Jim Meyering. + + * Makefile.in: Distribute mkinstalldirs. + Reported by Pierre Gaumond. + Reported by Jim Meyering. + Reported by Tom McConnell. + Reported by Andreas Gustafsson. + + * checks/check-them: Renamed from checks/check_them. + * checks/get-them: Renamed from checks/get_them. + * checks/.all-stamp: Renamed from checks/.all_stamp. + * checks/Makefile.in: Changed accordingly. + Reported by Jim Meyering. + +Thu Nov 4 13:50:52 1993 Francois Pinard (pinard@lagrande.IRO.UMontreal.CA) + + * lib/Makefile.in (dist): Correct permissions on files. + + * output.c: Declare tmpfile, some systems don't. + +Wed Nov 3 09:09:16 1993 Francois Pinard (pinard@icule) + + * checks/Makefile.in (dist): Correct permissions on files. + + * Makefile.in (dist): Ensure recursive linking for subdirectory + `examples', also set read/write permissions on all its files. + + * mkinstalldirs: New, from elsewhere. + * Makefile.in: Use it. + + * debug.c: Synchronize debug messages and regular output when + the debug file and stdout are redirected to the same file. + * configure.in: Add (commented) checks for fileno and fstat. + Reported by Jim Avera. + + * builtin.c (m4_ifelse): Diagnose excess arguments if 5, 8, 11, + etc., arguments, then ignore the superfluous one. m4 used to + diagnose missing arguments and return the empty string. + Reported by Nick S. Kanakakorn. + +Tue Nov 2 00:55:41 1993 Francois Pinard (pinard@icule) + + * m4.c (main): At end of all input, ensure all undiverted text + goes to the main output stream. + Reported by Andreas Gustafsson. + + * m4.c (main): exit (0), instead of return 0. + + * m4.c: Implement -P and --prefix-builtins. + * builtin.c: Delete const specifier on builtin_tab. + (prefix_all_builtins): New. + Reported by Noah Friedman. + Reported by Scott Bartram. + + * c-boxes.el: New, from elsewhere. + * Makefile.in: Distribute it. + + * m4.h: Do not define bcopy if <string.h> defines it. + Reported by Stephen Perkins. + + * builtin.c (define_macro): Allow a missing second argument, in + which case it is implied empty. Affects define and pushdef. + Reported by Eric Allman. + +Mon Nov 1 07:45:24 1993 Francois Pinard (pinard@icule) + + * m4.h: Add blind_if_no_args in struct builtin, blind_no_args in + struct symbol adn SYMBOL_BLIND_NO_ARGS macro. + * builtin.c: Initialize all the blindness fields in builtin_tab. + (define_builtin): Copy the blindness of a builtin into its symbol. + * macro.c (expand_token): Avoid processing a blind builtin if the + next character is not an opening parenthesis. + Reported by David MacKenzie. + Reported by Noah Friedman. + + * configure.in: Ensure an exit status of 0 on completion. + Reported by Vivek P. Singhal. + + * eval.c (eval_lex): Admit both lower and upper case letters for + bases greater than 10. Only lower case letters were accepted. + + * eval.c (eval_lex): Recognize 0bDIGITS and 0rRADIX:DIGITS syntax. + Reported by Krste Asanovic. + + * eval.c: Rename NOT to LNOT. Add XOR, NOT, LSHIFT and RSHIFT. + * eval.c (logical_not_term): New name for not_term. + * eval.c (xor_term): New, between or_term and and_term. + * eval.c (not_term): New, between and_term and logical_not_term. + * eval.c (shift_term): New, between cmp_term and add_term. + Reported by Krste Asanovic: ~, ^, <<, >>. + Reported by Ben A. Mesander: ** vs ^. + + * m4.c: Delete xmalloc.c, xrealloc.c, xstrdup.c. + * m4.h: Delete xrealloc.c. + * lib/xmalloc.c: New, from elsewhere. + * lib/xstrdup.c: New, from elsewhere. + * lib/Makefile.in: Distribute and compile them. + + * m4.c: Change progname to program_name. + * builtin.c, eval.c, m4.c, m4.h: Rename error to m4error. + * lib/error.c: New, from elsewhere. + * lib/Makefile.in: Distribute and compile error.c. + * configure.in: Check AC_VPRINTF and for strerror. + * m4.c: Delete cmd_error. Use error instead. + * m4.c: Change label capitalisation to "ERROR", "Warning", etc. + + * m4.h: Delete #define const, let Autoconf takes care of this. + + * m4.c: Remove all code conditionalized by IMPLEMENT_M4OPTS. + Merge parse_args into main. Declare argv to be `char *const *', + then remove superfluous casts. + + * m4.c: Rename --no-gnu-extensions to --traditional. + Reported by Ben A. Mesander. + + * m4.c (usage): Add a status parameter. Supply one in various + calls. Add --help processing. Remove -V for --version. + + * lib/Makefile.in: Put $(CFLAGS) last in .c.o rule. + + * lib/Makefile.in: Have an AR=ar declaration. + Reported by Eric Backus. + Reported by Bjorn R. Bjornsson. + Reported by Tom Tromey. + Reported by Kristine Lund. + Reported by Marion Hakanson. + +Sat Oct 30 12:51:47 1993 Francois Pinard (pinard@icule) + + * Makefile.in (m4.info): Use -I$(srcdir) on $(MAKEINFO). + Reported by Noah Friedman. + +Mon Oct 25 14:58:48 1993 Francois Pinard (pinard@icule) + + * Makefile.in: Remove MDEFINES and cleanup. + +Wed Jun 9 14:59:46 1993 Francois Pinard (pinard@icule) + + * Makefile.in (dist): Replace "echo `pwd`" by a mere "pwd". + Create a gzip file. + +Sat Feb 6 14:59:22 1993 Francois Pinard (pinard@icule) + + * Makefile.in, lib/Makefile.in, check/Makefile.in: In dist goals, + ensure 777 mode for directories, so older tar's will restore file + modes properly. + +Sun Jan 17 15:38:05 1993 Francois Pinard (pinard@icule) + + * Makefile.in, lib/Makefile.in: Put $(CFLAGS) after $(CPPFLAGS), + so the installer can override automatically configured choices. + Reported by Karl Berry. + +Fri Jan 15 16:07:00 1993 Francois Pinard (pinard@icule) + + * lib/vfprintf.c: Stolen from Oleo distribution and adapted. The + previous version was not working properly on m68k-hp-bsd4.3. + Reported by Roland McGrath. + + * lib/_doprnt.c: Stolen from Oleo distribution. + * configure.in: Check for _doprnt.c if vfprintf.c selected. + * lib/Makefile.in: Distribute _doprnt.c. + Do not distribute regex.[ch].old anymore. + +Fri Jan 1 19:42:23 1993 Francois Pinard (pinard at icule) + + * Makefile.in, lib/Makefile.in: Reinstate $(CPPFLAGS), use it. + Richard wants it there. + +Sun Dec 27 07:01:54 1992 Francois Pinard (pinard at icule) + + * Makefile.in: Add DEFS to MDEFINES. + * lib/Makefile.in (.c.o): Remove $(CPPFLAGS). + (libm4.a): Remove the library before creating it. + (distclean): Remove tags and TAGS too. + +Wed Dec 23 12:46:55 1992 Francois Pinard (pinard at icule) + + * Makefile.in (dvi, m4.dvi): New goals. + + * builtin.c, eval.c, format.c, input.c, m4.[ch], m4.texinfo, + macro.c, output.c, path.c, symtab.c: Change Copyright from + 1989-1992 to the explicit enumeration 1989, 1990, 1991, 1992. + + * examples/divert.m4: Deleted, this bug has been corrected. + + * Makefile.in (texclean, mostlyclean): New goals. + + * Makefile.in (clean): Remove clutter from ansi2knr. + Reported by Pierre Gaumond. + Reported by Greg A. Woods. + +Sun Dec 20 10:40:20 1992 Francois Pinard (pinard at icule) + + * Makefile.in: Remove $(CPPFLAGS) from the .c.o rule. The user + might well use CFLAGS is s/he needs it. + + * Makefile.in: Allow installation of info files from a separate + build directory. + Reported by Jason Merrill. + Reported by David MacKenzie. + Reported by Skip Montanaro. + Reported by Erez Zadok. + Reported by Assar Westerlund. + +Sat Dec 19 08:21:34 1992 Francois Pinard (pinard at icule) + + * Release 1.0.3 + This is still a beta release for the future GNU m4 version 1.1. + + * lib/alloca.c: New, from elsewhere. + * lib/Makefile.in: Distribute it. Define and use $(ALLOCA). + + * m4.h: Do not define index/rindex if already defined. If + FALSE/TRUE are already defined, do not redefine them, but merely + define boolean typedef to int. + + * Makefile.in: Use $(DEFS) while compiling ansi2knr. + * ansi2knr.c: Rewrite #ifdef HAVE_STRING_H || STDC_HEADERS, + because some C compilers do not like connectives with #ifdef. + * m4.h: Define `volatile' only if __GNUC__, instead of once for + __GNUC__ and once for __STDC__. + * lib/regex.h: Leave const alone, AC_CONST will take care of it. + + * checks/Makefile.in: Use .all_stamp instead of $(CHECKS) for + Makefile dependencies. Without it, make keeps destroying and + remaking $(CHECKS) in a loop (why?). Distribute .all_stamp. + + * m4.h, m4.c, builtin.c, output.c: Change all divertion/DIVERTION + to diversion/DIVERSION, this was a spelling error. + + * m4.c: Declare version[], remove #include "version.h". + * version.h: Deleted. + * Makefile.in: Remove references to version.h. + + * output.c (shipout_text): Centralize all `#line NUM ["FILE"]' + production, by using a simpler and more robust algorithm. This + solves the problem of synclines sometimes written in the middle of + an output line. Delete sync_line() and output_lines variable. + * m4.h: Remove sync_line prototype and output_lines declaration. + * input.c (next_char), output.c (shipout_text): Remove references + to output_lines. + * input.c (push_file, pop_file): Merely put the value -1 in + output_current_line instead of calling sync_line, for delaying a + single `#line NUM FILE' before next output line. Do not test + for sync_output, because this is unnecessary clutter. + * output.c (make_divertion, insert_divertion): Idem. + * input.c: Rename must_advance_line to start_of_input_line, for + consistency. + + * debug.c (trace_header): Select a new debug line format, which + better complies with GNU standards for formatting error messages. + With option `-dfl', M-x next-error might be used on the output. + * m4.c (vmesg): Adjust format of error output to GNU standards. + * m4.texinfo: Adjust examples for `make check' to work. + + * m4.h, builtin.c, debug.c, input.c, macro.c, path.c: Use upper + case for enum debug_info constants, which were all lower case. + + * builtin.c (m4_regexp, m4_patsubst): Use re_search instead of + re_search_2. + * lib/regex.[ch]: Use new version from textutils 1.3.6, with some + collected patches. I tried a few times using newer regex.[ch], it + mysteriously stopped aborting with this one. Insecure feeling... + * lib/Makefile.in: Distribute regex.[ch].old, just in case! + +Fri Dec 18 11:08:03 1992 Francois Pinard (pinard at icule) + + * m4.c: Change `--no-warnings' to `--silent'. + Reported by David MacKenzie. + + * m4.c: Put all M4OPTS code upon IMPLEMENT_M4OPTS control, and + leave it off for now. See comment in m4.c for justification. + Reported by David MacKenzie. + + * configure.in: Replace AC_USG by AC_HAVE_HEADERS(string.h). + * m4.h, ansi2knr.c, lib/regex.h: Replace USG by HAVE_STRING_H. + + * Makefile.in: Add a new `info' goal. Use macro MAKEINFO. + + * Makefile.in: Ensure recursive cleaning is done before local + cleaning for all clean goals. + + * builtin.c (ntoa): Ensure the value is always interpreted as a + signed quantity, whatever the radix is. + +Wed Nov 18 07:57:19 1992 Jim Meyering (meyering@idefix) + + * builtin.c, format.c, input.c: Split long lines. + * m4.c: Use typedef macro_definition instead of struct + macro_definition. + * symtab.c: Use typedef symbol instead of struct symbol. + +Tue Nov 17 01:58:40 1992 Francois Pinard (pinard at icule) + + * *.[ch]: Remove all trailing whitespace, in code and comments. + + * configure.in: Find some awk. + * Makefile.in: Add $(AWK) to MDEFINES. + * checks/Makefile.in: Transmit $(AWK) to get_them. + * checks/get_them: Use $AWK instead of gawk. Add a close in the + awk script when switching files, because without this, mawk runs + out of file descriptors. + +Mon Nov 16 20:42:56 1992 Francois Pinard (pinard at icule) + + * Makefile.in (realclean): Delete m4.info*. + Reported by Jim Meyering. + + * Makefile.in: Adjust and link with checks/Makefile. + * checks/Makefile.in: New. + * configure.in: Output checks/Makefile. + + * checks/get_them: Have the dnl header of each test more + recognizable by next-error, also use a better message. + +Mon Nov 16 07:48:52 1992 Jim Meyering (meyering@idefix) + + * m4.h [__GNUC__]: Use __volatile__ instead of `volatile.' + And use that only if __GNUC__ since we're using it's GCC-specific + semantics that tell the compiler the associated function doesn't + return. + + * builtin.c (substitute): Don't use character as an array index. + (dumpdef_cmp): Make formal arguments `const void *' to avoid + warnings with gcc -W -Wall on systems with qsort prototype. + (m4_errprint): Cast obstack_finish to `char *' to avoid warnings + from gcc -W -Wall. + + * eval.c (most functions): Add parentheses to assignments used + as truth values go avoid warnings from gcc -Wall. + + * input.c, m4.c, output.c, path.c, symtab.c: Declare static + any functions that don't need external scope. + + * builtin.c, debug.c, format.c, m4.c, m4.h, macro.c, symtab.c + (many functions and arrays): Declare `const'. + +Sun Nov 15 09:42:09 1992 Francois Pinard (pinard at icule) + + * *.[ch]: Rename nil to NULL, using the declaration from <stdio.h>, + removing the declaration from m4.h. Also rename false to FALSE + and true to TRUE. + + * lib/Makefile.in (Makefile): New goal. + + * Makefile.in, lib/Makefile.in: Add a .c.o rule, so CFLAGS is not + so heavily loaded. It gets more easily overridable, calling make. + Reported by Jim Meyering. + + * Makefile.in (dist): Get .fname from the current directory name, + instead of from version.h. I need updating many files manually, + when the version changes, version.h is just one of them. + +Sat Nov 14 11:01:20 1992 Francois Pinard (pinard at icule) + + * m4.h: Remove the tag `boolean' on the enum introducing typedef + `boolean'. This tag conflicts with <sys/types.h> on SVR4. + Reported by Tom McConnell. + +Fri Nov 13 00:12:50 1992 Francois Pinard (pinard at icule) + + * m4.texinfo: Correct the examples for 33.divert, 38.divnum, + 39.cleardiv, which were describing missing or spurious newlines. + Modify examples 52.eval, 53.esyscmd and 54.sysval so the results + do not depend on machine word size, `/bin/false' implementation, + or `wc' output format. `make check' is more dependable, now. + + * checks/check_them: Summarize the failed tests by listing their + name, at end. If none, issue `All checks successful'. Output + `Checking' instead of `Input file:'. + + * checks/get_them, checks/check_them: Reindented. + + * Makefile.in (dist): chmod a+r before making the tar file. + +Thu Nov 12 14:42:57 1992 Francois Pinard (pinard at icule) + + * builtin.c (m4_dnl): Diagnose any parameter to `dnl'. + + * input.c (next_token): Reinitialize token_buttom just after using + it as a watermark with obstack_free. Or else, a future token, big + enough for triggering reallocation of the obstack chunk, could + void the initialized value of token_buttom, later causing panic in + obstack_free. Rename token_buttom to token_bottom everywhere. + + * m4.h: Before declaring errno, first include <errno.h> and + ensure that it does not define errno. + Reported by Richard Stallman. + +Wed Nov 11 17:40:35 1992 Francois Pinard (pinard at icule) + + * builtin.c: Define and use DECLARE macro for builtins. + + * builtin.c (m4_ifelse): Avoid any diagnostic when exactly one + argument, this is a common idiom for introducing long comments. + + * builtin.c (m4_ifelse): If 3n + 2 arguments, diagnose missing + arguments. The last argument was silently ignored. + + * m4.c (cmd_error): Add a missing semicolon before va_end(). + +Tue Nov 10 08:57:05 1992 Francois Pinard (pinard at icule) + + * Makefile.in: Now handle protoized sources. Define and use U. + Compile and use ansi2knr with old compilers. Update DISTFILES. + Add `aclocal.m4' to `configure' dependencies. + * ansi2knr.c: New, from Ghostscript distribution. + * configure.in: Define U through FP_PROTOTYPES for old compilers. + Add AC_ISC_POSIX, AC_CONST, AC_SIZE_T. + * aclocal.m4: New, provide FP_PROTOTYPES. + * m4.h: Conditionnaly protoized through Args, save for varags. + * builtin.c: Protoized. Then: + Include <sys/types.h> if size_t is not defined, before "regex.h". + (m4_ifelse): Fetch built-in name properly for diagnostic. + (m4_dumpdef): Remove wrong (char *) cast calling dump_symbol. + (m4_regexp): Add const to `msg' declaration. + (m4_patsubst): Add const to `msg' declaration. + * debug.c: Protoized, save for varargs. + * eval.c: Protoized. + * format.c: Protoized. + * input.c: Protoized. + * m4.c: Protoized, save for varargs. Then: + (xfree): Accept void * instead of char *. + (xmalloc): Return void * instead of char *. + (xrealloc): Accept and return void * instead of char *. + * macro.c: Protoized. + * output.c: Protoized. + * path.c: Protoized. Then cast some (char *) over xmalloc's. + * symtab.c: Protoized. + +Fri Nov 6 02:05:21 1992 Francois Pinard (pinard at icule) + + * m4.texinfo: Remove directory from diagnostics in 30.include, + 51.eval, 56.errprint and 57.m4exit tests. + + * m4.h: Remove declarations for int or void system functions, they + cause more conflicting trouble than they make good. + + * configure.in: Avoid configuration header file. Add some tests. + * m4.h: Remove #include "config.h". + * Makefile.in, lib/Makefile.in: Implement Autoconf interface. + Then, rewritten for better compliance with GNU standards. + +Thu Nov 5 12:37:13 1992 Francois Pinard (pinard at icule) + + * format.c (format): Avoid syntax error if not HAVE_EFGCVT, + because of a misplaced #endif. + + * Many *.[hc] files: Correct intra-line spacing here and there, + according to GNU indent 1.6 advice. + + * configure.in: New, using Autoconf 1.2. + * m4.h: Reverse NO_MEMORY_H to NEED_MEMORY_H. + * Delete old configure.in, configure, etc/configure.in, + etc/configure, lib/configure.in, lib/configure and config/*. + Reported by Jason Merrill. + + * symtab.c (hash): Change (char) NULL to '\0'. + Reported by Jason Merrill. + + * Delete .vers, etc/newdist.sh, etc/newvers.sh and + etc/nextvers.sh. Release numbers will be edited `by hand'. + * version.h: De-automatize, force value in. + + * m4.c: Changes in order to use a newer getopt.h. + Reported by David MacKenzie. + + * checks/: New name for examples/. + * checks/get_them: New location for etc/get_examples. + * checks/check_them: New location for etc/check_examples. + * Makefile.in, checks/get_them, checks/check_them: Adjust. + * lib/vfprintf.c: New location for etc/vfprintf.c. + * Delete empty etc/. + * examples/: New name for test/. + +Tue Mar 10 00:29:46 1992 Francois Pinard (pinard at icule) + + * Makefile.in (check): Add m4 as dependency. + + * m4.c: Accept --no-warnings instead of --no_warnings, and + --no-gnu-extensions instead of --no_gnu_extensions. Make the + usage message more informative. + Reported by David MacKenzie. + +Mon Mar 9 14:53:40 1992 Francois Pinard (pinard at icule) + + * etc/check_examples: New name for check_examples.sh. + * etc/get_examples: New name for get_examples.sh. + * Makefile.in, etc/Makefile.in: Use new names. + + * Makefile.in: Transmit $(CC) while making in lib. + + * Many *.[hc] files: GNU indent'ed, with further fine tuning of + code disposition by hand. + +Sun Mar 8 11:01:55 1992 Francois Pinard (pinard at icule) + + * m4.h: Delete definitions for abort() and exit(). + Reported by Richard Stallman. + + * config/hmake-unicos, config/s-unicos.h: New files. + Reported by Hal Peterson. + + * eval.c (exp_term): Have N^0 return 1. + Reported by Michael Fetterman. + + * eval.c, input.c, m4.h: Remove last comma in enums. + Reported by Mike Lijewski. + + * Transfer of maintenance duties from Rene' to Franc,ois. + +Thu Oct 24 15:18:46 1991 Rene' Seindal (seindal at diku.dk) + + * Release 1.0. Many thanks to those, who provided me with bug + reports and feedback. + + * Uses GNU configure, taken from the gdb distribution. + + * Uses GNU getopt(), with long option names. + + * The -Q/+quiet option is added, which suppresses warnings about + missing or superflous arguments to built-in macros. + + * Added default options via the M4OPTS environment variable. + + * The built-in format can now be configured to use sprintf as + the formatting engine, for systems without [efg]cvt(3). + + * GNU library code is moved to the ./lib subdirectory; other + utility files are now in ./etc. + + * Several minor bugs have been fixed. + +Fri Jul 26 15:28:42 1991 Rene' Seindal (seindal at diku.dk) + + * Fixed various bugs. Release 0.99, manual 0.09. Many thanks to + Francois Pinard and Roland H. Pesch for providing me with reports. + + * The builtins incr and decr are now implemented without use of + eval. + + * The builtin indir is added, to allow for indirect macro calls + (allows use of "illegal" macro names). + + * The debugging and tracing facilities has been enhanced + considerably. See the manual for details. + + * The -tMACRO option is added, marks MACRO for tracing as soon + as it is defined. + + * Builtins are traced after renaming iff they were before. + + * Named files can now be undiverted. + + * The -Nnum option can be used to increase the number of + divertions available. + + * Calling changecom without arguments now disables all comment + handling. + + * The function m4_patsubst() is now consistently declared + static. + + * A bug in dnl is fixed. + + * A bug in the multi-character quoting code is fixed. + + * Several typos in the manual has been corrected. More probably + persist. + + * The m4.info file is now installed along with the program. + +Thu Nov 15 21:51:06 1990 Rene' Seindal (seindal at diku.dk) + + * Updated and enhanced version. Release 0.75, manual 0.07. + + * Implemented search path for include files (-I option and + M4PATH envronment variable). + + * Implemented builtin "format" for printf-like formatting. + + * Implemented builtin "regexp" for searching for regular + expressions. + + * Implemented builtin "patsubst" for substitution with regular + expressions. + + * Implemented builtin "esyscmd", which expands to a shell + commands output. + + * Implemented "__file__" and "__line__" for use in error + messages. + + * Implemented character ranges in "translit". + + * Implemented control over debugging output. + + * Implemented multi-character quotes. + + * Implemented multi-character comment delimiters. + + * Changed predefined macro "gnu" to "__gnu__". + + * Changed predefined macro "unix" to "__unix__", when the -G + option is not used. With -G, "unix" is still defined. + + * Changed "shift", "$@" and "$*" to not insert spaces afters + commas. + + * Added program name to error messages. + + * Fixed two missing null bytes bugs. + +Mon Jan 22 21:08:52 1990 Rene' Seindal (seindal at diku.dk) + + * Initial beta release. Release 0.50, manual 0.05. + + ----- + + Local Variables: + coding: utf-8 + End: + + Copyright (C) 1990-1994, 2000-2001, 2003, 2005-2011 Free Software + Foundation, Inc. + + Copying and distribution of this file, with or without + modification, are permitted provided the copyright notice + and this notice are preserved. |